Flights from Boston to London
Compare 800+ airlines · Book direct · No Mubboo fees
From $643 · Prices update daily
We don't sell anything. We compare — you choose the best deal.
Prices from 800+ airlines · Book direct, get direct support
The quick answer
A saved fare observation for Boston to London was $213. Carrier in the saved observation: Icelandair. Cheapest month: September; peak: August (about +76%). Visa-free for US passport holders (Canada).
Saved route evidence
Fare snapshot
$213
Observed Jul 26, 2026. Prices can change.
Carriers in the saved observation
- Icelandair
Price calendar — next 60 days
★ Cheapest: $643 on Sat, Sep 26 · SK
Recently observed fares · Final price confirmed at booking
Price calendar — Boston to London
Month-by-month lowest fares. Green = cheapest dates.
Airlines flying Boston to London
JetBlueApproximately $480 – $760 economy; Approximate: Mint lie-flat $1,400 – $2,400+ by season
Direct · about 6h 30m eastbound / 7h 45m westbound
British AirwaysApproximately $520 – $820 economy; Approximate: Club Suite business $3,200 – $5,200+ by season
Direct · about 6h 35m eastbound / 7h 50m westbound
Virgin AtlanticApproximately $520 – $820 economy; Approximate: Upper Class $3,000 – $4,800+ by season
Direct · about 6h 35m eastbound / 7h 50m westbound
Delta Air LinesApproximately $520 – $820 economy; Approximate: Delta One $3,200 – $5,000+ by season
Direct · about 6h 35m eastbound / 7h 55m westbound
American AirlinesApproximately $510 – $810 economy; Approximate: Flagship Business $3,200 – $5,000+ by season
Direct · about 6h 35m eastbound / 7h 50m westbound
Flying to London? Compare from other US cities
Sometimes a nearby airport is cheaper. See London fares from other departure cities.
Canada essentials
🟢 Visa-free for US passport holders
No visa; UK ETA required since Jan 2025 (£20, two-year multiple entry)
Full London visa guide →🆘 Emergency
911
💱 Currency
Canadian Dollar (C$)
🕐 Time zone
UTC−3.5 to −8
🗣️ Language
English, French
🔌 Plugs
Type A/B · 120V
🚗 Driving
Right side
💡 Tipping
Expected — 15–20%
📞 Dial code
+1
🏛️ US Embassy
Ottawa · +1 613-688-5335
Entry rules can change — always confirm with official sources before booking.
Stay connected in London
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your Boston to London trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in London
Pre-book your ride into London. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your Boston to London flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
Boston to London — frequently asked
How much is a flight from Boston to London?+
Fares start around $643 round-trip, ranging up to about $1417 in peak periods. Prices update daily across 800+ airlines.
What is the cheapest month to fly Boston to London?+
September typically has the lowest fares, while August is the most expensive (around +76%).
Are there direct flights from Boston to London?+
No nonstop itinerary appeared in the saved route observation. Check current search results for your dates.
Which airlines fly from Boston to London?+
Carriers on this route include Icelandair. Compare them side by side in the search above.
Do US citizens need a visa for Canada?+
Visa-free for US passport holders for stays up to 6 months. Visa-free for US citizens; passport required.
What currency is used in Canada?+
The Canadian Dollar (CAD, C$). The emergency number is 911.
Mubboo earns a commission when you book through our links. This does not affect the prices you see or our recommendations. Final prices are confirmed on the booking site.