💰 When is the cheapest time to fly from Seattle to Reykjavík?
This month: Peak of peak — the year's most expensive fares as school holidays land.
Seattle–Reykjavík fares move on two engines. The big one is the summer peak (June–August) — midnight sun, the open Ring Road, and cruise season push economy to $1,050–$1,400.
The second is a winter aurora micro-peak around Christmas and New Year, when Reykjavík's fireworks draw a holiday crowd and fares climb near $950.
The genuine floors sit in February and January — dark, cold, but aurora-rich and cheap near $620–$640. The April–May and September–October shoulders trade a little money for longer daylight.
Here's a month-by-month look at prices on this route:
✈️ Which airlines fly from Seattle to Reykjavík?
One carrier flies this nonstop, and two others orbit it. Icelandair operates the lone direct SEA→KEF flight on a 737 MAX 8.
Alaska resells that exact metal as a codeshare for Mileage Plan earners, and Delta connects through an East Coast or Midwest hub. The real decision is not which airline — it is which fare class, and whether the free stopover earns its place.
Icelandair owns this route — it is the only nonstop.
The 737 MAX 8 (16 Saga + 144 economy) makes the 7.5h hop feel short. Saga Premium is a wide first-class-style recliner, not lie-flat — a verified flyer called it worth it for the shorter transatlantic block.
The real draw is the free Iceland stopover: break in Reykjavík up to 7 days at no added airfare en route to 30+ European cities.
Watch the thin entertainment library and occasional remote-stand boarding by stairs at KEF. Skip Economy Light if you need a checked bag.
Best for: every Seattle–Reykjavík traveler (it is the only nonstop), free-stopover Europe connectors, Alaska Mileage Plan members earning miles via codeshare, and travelers who value a comfortable recliner over a flat bed on a short transatlantic flight
Alaska is the reason Seattle locals love this route.
You fly the same Icelandair 737 MAX 8, but booking through Alaska earns Mileage Plan miles on a transatlantic trip from your home hub — a real win for SEA-based MVP and MVP Gold members.
Verified August fares tracked within a hair of Icelandair's own pricing, so you give up almost nothing on cost.
Book through Alaska only if mileage earning matters; otherwise the metal is identical, so price-shop both. Do not expect a different cabin or on-time record.
Best for: Seattle-based Alaska Mileage Plan loyalists, MVP/MVP Gold elites, and travelers consolidating credit-card or partner miles in the Alaska program
Delta is the connecting alternative — choose it for SkyMiles or schedule, never for speed.
There is no Delta nonstop SEA→KEF; you route through an East Coast or Midwest hub, adding 4–8 hours versus the nonstop.
The reason to pick it is loyalty math: SkyMiles earners and Amex Platinum or Delta Reserve cardholders chasing SkyTeam status can justify the extra stop.
For everyone else, a connection through a busy summer hub invites weather delays and missed-connection risk the nonstop simply avoids.
Best for: Delta SkyMiles loyalists, Amex Platinum/Delta Reserve cardholders chasing status, and travelers whose dates fall outside Icelandair's daily nonstop window
Mubboo verdict: Icelandair owns Seattle–Reykjavík — the only nonstop. Book through Alaska to earn Mileage Plan miles on identical metal. Skip Economy Light if you need a checked bag.
Prices shown are approximate averages based on recent searches (April 2026). Actual fares vary by date, class, and availability.
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Compare all flights →📅 When should you book Seattle to Reykjavík flights?
Book 2–4 months out for summer, 4–8 weeks out for the winter shoulder. Icelandair runs a single daily nonstop, so peak June–August seats sell early — lock those by spring.
Tuesday and Wednesday departures price below weekends, and the evening SEA redeye is both the cheapest and the smartest jet-lag play.
For a February or September trip, fares soften midweek. Set a fare alert and pounce on the sub-$700 band.
Maximum daylight, maximum crowds, maximum price. Every lagoon and waterfall is busy — pre-book everything. July rewards planners.
If you're a family flying in summer, book by March — peak season fills up fast.
Budget travelers: shoulder season (Sep–Oct, Apr–May) offers the best balance of price and weather.
💡 This Jul: Book by spring — award space is hardest now.
🏙️ Why visit Reykjavík?
Reykjavík is the world's northernmost capital, and a far better city stop than its 'skip it for the nature' reputation suggests.
The most-watched recent first-timer guide corrects that hype, calling the city artsy, walkable, and waterfront [Y] — you can cover the core on foot in a day.
Design-forward cafés and a Michelin-guide dining scene sit 50 km from KEF and at the doorstep of the Golden Circle.
Learn four names: Miðborg downtown, the Old Harbour / Grandi, Laugardalur for the pools, and the hill around Hallgrímskirkja.
What makes Reykjavík worth the flight:
Match your time to the trip — Reykjavík scales beautifully.
8-hour stopover: Flybus downtown, climb the Hallgrímskirkja tower, walk Laugavegur, soak at the ocean-edge Sky Lagoon [Y].
48 hours: Add a Golden Circle self-drive day — Þingvellir → Geysir → Gullfoss → Secret Lagoon [Y].
A week: Use the free stopover for the South Coast — Seljalandsfoss, Skógafoss, Reynisfjara beach, the Jökulsárlón glacier lagoon [Y/E].
Best neighborhoods to explore:
The walkable core — shops, bars, design stores, and most boutique hotels line Laugavegur and the lanes around it. This is where the Flybus drops you and where a first-timer should sleep.
A reclaimed industrial waterfront turned creative quarter — whale-watching docks, the Marshall House art space, fish restaurants, and FlyOver Iceland all cluster here, minutes from the center on foot.
The rainbow-painted street climbing to Iceland's iconic church, lined with galleries and cafés. The tower lift delivers the best panorama in the city for a small fee.
A green valley east of center built around the city's biggest geothermal pool, a botanic garden, and the national stadium — the spot to soak alongside locals rather than tourists.
A quiet residential district home to the neighborhood Vesturbæjarlaug pool and the edge of Grandi — budget guesthouses and hostels make it the value base.
Don't miss:
Hallgrímskirkja
Iceland's landmark expressionist church. Entry is free; a small fee buys the tower lift and the best Reykjavík panorama. Universally recommended as unmissable.
Browse Hallgrímskirkja tours →Golden Circle (Þingvellir, Geysir, Gullfoss)
The classic self-drive day. Gullfoss is free and worth the crowds; Geysir is the one stop first-timers say they would skip. Top up fuel before Þingvellir.
Browse Golden Circle (Þingvellir, Geysir, Gullfoss) tours →Sky Lagoon
A modern geothermal spa minutes from downtown with an ocean-edge infinity pool. Reservation required — a reliable backup when Blue Lagoon is closed by volcanic activity.
Browse Sky Lagoon tours →Old Harbour whale watching
Minke and humpback tours depart Grandi, strongest May–September. A short walk from downtown and an easy half-day for families.
Browse Old Harbour whale watching tours →Brauð & Co + SKÁL
Brauð & Co is the cult bakery for cinnamon rolls; SKÁL is a Michelin-guide Icelandic kitchen in a downtown food hall — dinner for two under $100 by Iceland standards.
Browse Brauð & Co + SKÁL tours →Reykjavík New Year's Eve
Community bonfires and one of the world's largest civilian fireworks displays light the harbor sky — the reason December fares spike.
Browse Reykjavík New Year's Eve tours →Harpa Concert Hall
Olafur Eliasson's honeycomb glass façade glows on the waterfront. Free to wander inside, and a striking photo stop day or night.
Browse Harpa Concert Hall tours →Mubboo Verdict:
Base in Miðborg — everything is walkable and the Flybus lands you a short walk away.
Skip sleeping out by the airport in Keflavík unless you have a pre-dawn flight; it is 50 km from the action. And give Reykjavík a full day before chasing waterfalls — the city rewards more time than the 'just transit through it' crowd claims.
🧳 What do you need to know before flying to Reykjavík?
🛂 Do Americans need a visa for Reykjavík?
Schengen · 90 days visa-free · US passport [GOV].
Iceland is in the Schengen Area, so US passport holders travel visa-free for up to 90 days in any 180-day period for tourism or business [GOV: travel.state.gov, advisory dated May 5 2026].
Your passport should have at least 3 months' validity beyond departure [GOV].
ETIAS is scheduled to begin in the last quarter of 2026. Once live, visa-exempt US travelers must hold an approved ETIAS authorization (valid about 3 years, fee around €20) before boarding — confirm the exact start date at the official EU ETIAS page [GOV/EU].
Travel advisory: Level 1, Exercise Normal Precautions [GOV].
🕐 What's the time difference?
Reykjavík runs GMT year-round · 7–8h ahead of Seattle.
Iceland observes GMT (UTC+0) and no daylight saving [W]. Seattle sits on Pacific Time, so Reykjavík is 7 hours ahead in summer, 8 in winter.
The eastbound redeye departs SEA in the evening and lands KEF around breakfast — the kindest possible arrival.
Stay awake until local dusk to reset; the westbound return runs in your favor, handing back the hours you lost.
🚇 How do you get from the airport to the city?
KEF is 50 km (30 mi) southwest of Reykjavík — there is no train. Fares are approximate, as of 2026:
| Option | Time | Cost | Best for |
|---|---|---|---|
| Flybus (Reykjavik Excursions) | ~45 min | ISK 4,000–4,500 (~$30) | Most travelers; city-only stays ✅ |
| Airport Direct / Airport Express | ~45 min | Similar to Flybus | Alternate departure schedules |
| Taxi | ~45 min | ISK 18,000–22,000 (~$130–160) | Groups, late arrivals (no Uber/Lyft) |
| Rental car | Self-drive | Agencies at KEF | Golden Circle / Ring Road trips |
Editor's pick: The Flybus for a city-only visit; a rental car if the Golden Circle is on your list — and top up the tank before Þingvellir, where gas-station gaps are real.
💷 What about money and tipping?
Krónur, but bring a card — Iceland is near-cashless.
Iceland uses the Icelandic króna (ISK), yet cards, contactless, and mobile wallets work essentially everywhere — even remote fuel pumps [W/Y].
Bring a no-foreign-transaction-fee card — Chase Sapphire Preferred, Capital One Venture, or Amex Platinum — and skip the cash exchange.
The króna has historically traded around 120–145 ISK per dollar; check current rates rather than memorizing a figure. Tipping is not expected — round up only for exceptional service.
Reykjavík currency snapshot
1 USD = 126 ISK
1 ISK = $0.0079 USD
Icelandic Króna
Cash
ATMs offer the best rate. Avoid airport currency desks.
Tipping
Card-first economy — cards work for everything including buses. Tipping not expected. ATMs at Keflavik airpo…
Cards
Visa and Mastercard widely accepted. Tell your bank before you go.
Source: open.er-api.com · Updated Jul 5, 2026 · Rates fluctuate — check before booking.
📱 Will your phone work?
eSIM beats roaming for any multi-day trip.
T-Mobile Magenta and Go5G include basic international data and texting in Iceland; AT&T and Verizon charge an International Day Pass around $10–12/day.
For several days, an eSIM is cheaper — Saily, Airalo, and Yesim sell Iceland and Europe packages at a few dollars per GB.
Coverage is strong — Iceland has excellent 4G/5G even along the Ring Road, plus free Wi-Fi in most cafés, hotels, and the Flybus.
☁️ Reykjavík climate overview
Avoid: JanHistorical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.
Jan
34°/25°F
8.2″ rain
Feb
41°/33°F
7.7″ rain
Mar
42°/34°F
6.3″ rain
Apr
47°/37°F
2.9″ rain
May
52°/43°F
3.9″ rain
Jun
51°/43°F
3.1″ rain
Jul
56°/50°F
3.0″ rain
Aug
57°/49°F
6.0″ rain
Sep
53°/44°F
7.4″ rain
Oct
44°/37°F
6.2″ rain
Nov
37°/30°F
2.2″ rain
Dec
40°/34°F
5.4″ rain
Source: Open-Meteo Archive API · 2025 historical data · Updated July 2026
Ready to lock in your fare? Search live prices below:
✈️ Ready to book? Compare Seattle to Reykjavík flights
Search flights →🛫 Flying from Seattle — airport tips
SEA South Satellite (S Concourse) — Icelandair (FI) gates (Icelandair)
- Check in at the Main Terminal, then ride the underground train to the S gates
- Saga Premium passengers use priority check-in and boarding
- Clear TSA 2.5–3 hours early on summer weekends — SEA's checkpoints back up fast
SEA Concourse C/D — Alaska Airlines (AS) codeshare (Alaska Airlines)
- Booked through Alaska? You may check in at Alaska counters but board the Icelandair S-gate departure
- Confirm the operating-carrier gate — it is the Icelandair MAX 8, not Alaska metal
- Mileage Plan elites get Icelandair check-in priority on this codeshare
KEF Leif Erikson Air Terminal — arrival (Icelandair)
- Schengen arrival: passport control, then one baggage hall for the terminal
- Flybus stops and rental-car desks are immediately outside arrivals
- Occasional remote-stand boarding by stairs on departure — dress for wind
🚐 Skip the hassle? Book a private airport transfer
Fixed price, meet & greet at arrivals, door-to-door service
💡 Insider tips: Seattle to Reykjavík
Win Saga Premium for a fraction of the fare with the Class Up bidMubboo original data
The cheapest path into Saga is not the published fare — it is the bid.
We tracked fares across major booking platforms and confirmed the pattern: economy passengers submit an upgrade bid and frequently clear into Saga the night before departure for far less than the premium ticket.
A verified flyer did exactly this on the SEA-route 737 MAX 8 — wide recliner, Saga Lounge access at KEF, priority boarding.
Set your bid modestly above the minimum and watch your email the evening before you fly.
Stack the free Iceland stopover and get two trips on one ticketMubboo original data
This is the single feature that makes Icelandair worth choosing over a one-stop competitor.
We cross-checked Icelandair's published stopover terms against multiple flyer reports: booking SEA→KEF→a European city lets you break in Reykjavík for up to 7 days at no added airfare.
You add the stopover during booking — it is built into the fare construction, not bolted on after.
A long weekend in Reykjavík plus a week onward costs the same airfare as the onward ticket alone. Treat the layover as a destination.
Saga is a recliner — plan for a nap, not a flat bed
The Saga cabin on the MAX 8 is a wide, domestic-first-class-style recliner with strong legroom and lounge access — not a lie-flat bed.
Set that expectation and the 7.5-hour block becomes genuinely restful: a verified reviewer (5'3") found the footrest 'just about perfect' and managed a real nap.
The entertainment library is thin versus US legacy carriers — download your own movies before you board. Pre-departure champagne and an amenity kit round out the soft service.
Take the evening SEA redeye to land KEF at breakfast
The eastbound flight leaves Seattle in the evening and lands Keflavík around breakfast — the kindest arrival on a 7–8 hour time shift.
Reykjavík runs on GMT with no daylight saving, so the math is clean: 7 hours ahead in summer, 8 in winter.
Stay awake until local dusk on arrival day, get sunlight, and skip the nap — you will reset by night one.
The westbound return hands the hours back, so jet lag home is mild.
Do not buy Economy Light if you need a checked bag
The Economy Light fare looks like the bargain until the bag fee lands.
It includes only a carry-on plus a personal item — no checked bag at all.
Economy Standard and Economy Flex bundle one or two 23 kg checked bags, and the bundled price usually beats paying the gate or desk add-on later.
If you are doing the free stopover and traveling onward, you almost certainly want a checked bag — price the Standard fare first, not the Light.
Pre-book every lagoon and hot spring before you leave home
Blue Lagoon, Sky Lagoon, Secret Lagoon, and Hvammsvík are all reservation-only — and they sell out.
A visitor drove the full distance to Hvammsvík and was turned away because it was fully booked.
Worse, Reykjanes volcanic activity has repeatedly closed the Blue Lagoon across 2023–2025 eruptions, and the Grindavík–KEF road sits on the same peninsula — keep Sky Lagoon as a backup.
Book entry windows before departure and check eruption status the week you fly.
👥 Who flies this route — and what they should know
Summer Ring Road road-tripper
Featured this monthRecommended: Icelandair economy plus a rental car from KEF.
June through August brings the midnight sun and the fully open Ring Road, but fares hit their annual peak — book 2–4 months ahead.
Pick the car up at KEF and start the loop the same day.
Anti-recommendation: do not underfuel before Þingvellir — gas-station gaps outside the capital are real, and a visitor learned that the hard way.
Free-stopover Europe connector
Recommended: Icelandair economy, evening SEA departure.
Book SEA→KEF→your European city as one ticket and add the free stopover — up to 7 days in Reykjavík at no extra airfare.
Land KEF at breakfast, Flybus downtown, and base in Miðborg for a long weekend before flying onward.
Anti-recommendation: do not book Economy Light if you need a checked bag for the onward leg — the gate fee erases the savings.
Seattle Alaska Mileage Plan loyalist
Recommended: the Icelandair nonstop booked through Alaska.
You fly the same 737 MAX 8, but booking via Alaska earns Mileage Plan miles on a transatlantic trip from your home hub — a real win for SEA-based MVP and MVP Gold elites.
Verified August fares tracked within a hair of Icelandair's own pricing, so you give up almost nothing.
Anti-recommendation: do not expect a different plane — it is identical metal, so price-shop both.
First-time Reykjavík city tripper
Recommended: Icelandair economy, base downtown in Miðborg.
For 2–3 nights, take the Flybus in, climb Hallgrímskirkja, walk Laugavegur, and add one Golden Circle day.
Give the city a full day — the highest-view first-timer guide warns against skipping it for nature.
Anti-recommendation: do not base yourself by the airport in Keflavík — it is 50 km from everything worth seeing.
Aurora winter chaser
Recommended: Icelandair economy in the February price floor.
January through March is Northern Lights season, and February fares sit at the annual low — the cheapest window of the year.
Rent a car to escape Reykjavík's light pollution — the aurora rewards a dark sky an hour out of town.
Anti-recommendation: do not bank on a single clear night — pad your itinerary to 3–4 nights so weather has room to cooperate.
Saga Premium comfort flyer
Recommended: Saga Premium recliner — ideally won cheap via the Class Up bid.
The Saga cabin on the MAX 8 is a wide first-class-style recliner with KEF lounge access, pre-departure champagne, and an amenity kit — restful on the 7.5-hour block.
Submit a modest upgrade bid and watch your email the night before departure.
Anti-recommendation: do not expect a lie-flat bed, and download your own movies — the entertainment library is thin.
Budget backpacker on a stopover
Recommended: Icelandair economy on a February or September shoulder fare.
Take the Flybus not a taxi, run an eSIM instead of roaming, and bunk at a hostel or guesthouse in Vesturbær.
Stretch the free stopover into a few cheap Reykjavík days en route to the rest of Europe.
Anti-recommendation: do not drive to Hvammsvík or Blue Lagoon without a reservation — both are reservation-only and sell out.
⚖️ Flight delayed or canceled?
The return leg is better protected than the outbound. Iceland is in the EEA and Icelandair is an EEA carrier, so EC 261 applies on departures from KEF — qualifying delays and cancellations on the return can trigger compensation up to €600.
The SEA→KEF outbound from a US airport falls under US DOT rules: airlines must refund canceled flights in cash, not vouchers, under the October 2024 Final Rule [W/GOV].
There is no fixed US cash-compensation scheme for delays the way EC 261 mandates — so on a disrupted KEF return, file your EC 261 claim. Travel insurance covers the gaps either direction.
Flight delayed or cancelled? You may be owed up to €600 in compensation.
📱 Stay Connected — Travel eSIM for Iceland
Free option: T-Mobile Magenta includes basic Iceland data and texting — fine for maps, slow for video
Iceland has excellent 4G/5G even on the Ring Road, but US roaming day passes run $10–12/day and add up fast.
A pre-installed eSIM gives full speed the moment you land at KEF: Saily, Airalo, and Yesim sell Iceland and Europe data at a few dollars per GB.
🛡️ Travel Insurance — Iceland weather and volcano cover
Iceland's weather and Reykjanes volcanic activity can close roads, lagoons, and occasionally the KEF access route on short notice.
A policy with trip-interruption and delay cover turns a closure into a reimbursed inconvenience. EKTA covers US travelers on European trips with adventure options for glacier and highland excursions.
🚐 Airport Transfer — KEF to Reykjavík
Free option: The Flybus coach is the cheapest option and runs after every arrival — no booking required
KEF is 50 km from the city and there is no train. Book a shared shuttle or private transfer ahead so a weather-delayed arrival does not leave you negotiating a $130–160 taxi at midnight.
A pre-booked transfer locks the price and meets you in arrivals — useful for the evening-redeye crowd.
Emergency contacts in Reykjavík
Frequently asked questions about Seattle to Reykjavík flights
Yes — Icelandair flies the only nonstop, covering SEA→KEF in about 7h 25m eastbound on a Boeing 737 MAX 8.
Alaska Airlines sells the same flight as a codeshare. Delta routes through an East Coast or Midwest hub, so it is connecting only and adds 4–8 hours.
Flights from Seattle
Popular Reykjavík routes
Researched by Mubboo Editorial Team · Reviewed by Richard Lee, Founder
Prices from Aviasales. Seasonal advice updated: July 2026 · Last editorial review: 2026-06-25 · Government info: travel.state.gov
Prices last updated just now · cached fares aggregating 800+ airlines and agencies · Check current prices →
M verdicts are based on editorial research — not pulled from a database.