💰 When is the cheapest time to fly from Chicago to Singapore?
This month: Round trip climbs toward $1,380; every carrier's economy bucket tightens in July.
No airline flies Chicago to Singapore nonstop, so fares track connection-hub competition more than Singapore-specific seasonality. September and October are the two floors; June through August and the December holiday weeks run $250-500 higher.
Here's a month-by-month look at prices on this route:
✈️ What are the best ways to get from Chicago to Singapore?
None of the five carriers below fly Chicago to Singapore nonstop — every seat on this route touches a connecting hub. Sorted by total elapsed travel time, fastest first.
The fastest total routing on this list, and the one Mubboo would book for a first-time visit. The 15h45m ORD-Hong Kong leg on an Airbus A350 pairs with a quick 3h45m hop to Singapore, keeping total travel time to about 20h30m door-to-door — 2 to 3 hours less than every other option here. Cathay Pacific is also the only carrier flying ORD-Hong Kong nonstop, so there's no domestic connection adding delay risk on the US side.
Best for: the shortest total routing and first-time Singapore visitors
Best for travelers who want a Seoul stopover without paying extra for it. Korean Air's 14h50m ORD-Incheon leg and 6h20m Incheon-Singapore hop total about 21 hours of flying, and Seoul's transit rules make a 2-3 day stopover straightforward for US passport holders on a connecting itinerary. Economy seat pitch matches Cathay Pacific at 32 inches. The tradeoff: Korean Air flies this nonstop leg just once daily, so schedule flexibility is tighter than United's SFO options.
Best for: a Seoul stopover built into the ticket at no extra cost
Best if you already hold United or Star Alliance status and want one boarding pass for the whole trip. United's own metal covers both the ORD-SFO domestic hop and the 17-hour SFO-SIN long-haul on a 787-9, so MileagePlus perks and upgrade priority carry through every leg instead of resetting at a foreign carrier's counter. The catch: SFO's connection bank isn't built around this specific long-haul, so layovers run longer than the Asian-hub routings above.
Best for: United/Star Alliance elites who want single-carrier convenience on every leg
Best cabin on this entire list, if you're willing to accept the longest total trip time. Qatar's Qsuite business class — a fully enclosed suite with a closing door, used on the Doha-Singapore leg — beats every other business product here, including Cathay Pacific's and ANA's. The tradeoff is real: at roughly 23 hours total including the Doha layover, this is the slowest of the five routings. Skip Qsuite here unless the cabin matters more to you than the clock.
Best for: travelers prioritizing Qsuite business class over total trip time
Best for travelers who want Japan's top-ranked cabin service split across two manageable flights instead of one grueling day. The 13h40m ORD-Haneda segment and 7h20m Haneda-Singapore hop total about 21 hours of flying, and ANA consistently ranks among the most punctual carriers on this list. Haneda's 30-minute train ride into central Tokyo also makes a short stopover genuinely usable. Economy seat pitch runs a generous 32 inches, better than most alternatives here.
Best for: travelers who want top-ranked service split across two manageable flights
Mubboo verdict: Skip searching for a nonstop that doesn't exist. Cathay Pacific via Hong Kong is the fastest one-stop option; book 3-4 months out and fly Tuesday or Wednesday to save $150-250.
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 Chicago to Singapore flights?
Book 3-4 months ahead for any of these five routings — connection capacity through Doha, Hong Kong, Seoul, Tokyo, or San Francisco is the real constraint, not Singapore-side demand. Tuesday and Wednesday departures run $150-250 cheaper than Friday-Sunday on every carrier checked, since the domestic-to-hub leg still follows US business-travel pricing patterns. September holds the year's lowest average fares; July and December run highest. If dates are flexible, shifting a trip by 5-7 days around Thanksgiving or the December holidays commonly saves $150-300 round trip on this route.
The single most expensive month on this route — peak summer meets tight one-stop inventory.
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 4+ months out, or shift to September.
🏙️ Why visit Singapore?
Singapore packs Chinese, Malay, Indian, and colonial-British influences into a city-state smaller than New York City, and every neighborhood shows a different one. The skyline around Marina Bay Sands and the Supertree Grove at Gardens by the Bay looks unlike anywhere else in Asia — and it's spotless, with strict littering and jaywalking fines that make sidewalks genuinely walkable at 11pm. Hawker centers serve Michelin-recognized $3-5 plates a few steps from $400-a-night hotels, which is the real draw for most first-time visitors: the food-to-dollar ratio beats Tokyo, Hong Kong, or Bangkok. The MRT subway reaches nearly every attraction for about a dollar a ride, so this is a city where a rental car and taxi lines are entirely skippable. Plan on 4-5 days minimum; Chinatown, Little India, and Kampong Glam alone are worth a full day each.
What makes Singapore worth the flight:
Beyond the postcard shots, Singapore's real strength is density: Gardens by the Bay, the Singapore Flyer, and the Marina Bay waterfront sit within a 20-minute walk of each other, and Sentosa Island's beaches and Universal Studios are a short cable car or MRT ride south. Locals split evenings between hawker centers in Chinatown and rooftop bars overlooking the bay — both fit into the same night without a cab.
Best neighborhoods to explore:
Home to the Marina Bay Sands towers, the Esplanade performing arts center, and Gardens by the Bay. Walkable and the base most first-time visitors pick.
The Maxwell Food Centre hawker stalls serve some of the city's best $3-5 chicken rice and satay, a few blocks from restored shophouses.
Tekka Centre's wet market and curry houses run past midnight; the best base for cheap, central budget-traveler accommodation.
Haji Lane's narrow street of independent boutiques and murals sits directly behind the gold-domed Sultan Mosque, a 10-minute walk from Little India.
A cable car or short MRT hop from the mainland reaches Universal Studios, the S.E.A. Aquarium, and three beaches — the default pick for families.
Don't miss:
Gardens by the Bay
Free to enter; the Supertree Grove light show runs nightly. The Cloud Forest dome costs about $24 for adults.
Browse Gardens by the Bay tours →Marina Bay Sands SkyPark
About $26 for the observation deck ticket, or book a stay and use the rooftop infinity pool (guests only).
Browse Marina Bay Sands SkyPark tours →Sentosa Island
Universal Studios runs $60-75 per adult; the beaches and cable car ride are free to explore.
Browse Sentosa Island tours →Chinatown hawker centers
Maxwell Food Centre plates run $3-6; look for the Hainanese chicken rice stall with the longest line.
Browse Chinatown hawker centers tours →Singapore Zoo & Night Safari
About $35-48 per adult; the Night Safari is the only nocturnal zoo of its kind in Asia.
Browse Singapore Zoo & Night Safari tours →Jewel Changi Airport
Free to visit the Rain Vortex indoor waterfall, even without a flight — worth a pre-flight detour.
Browse Jewel Changi Airport tours →Mubboo Verdict:
Singapore rewards travelers who plan four solid days, not a two-night layover stretch — the food scene and neighborhood density need more than a rushed itinerary.
🎟️ Top activities in Singapore
Ranked by traveler ratings and recent booking volume.
Departure Transfer: Pick up from hotel to Airport or CruiseCentre
$78.41Explore a Rainforest teeming with Wildlife at Night!
$86.34Private Custom Singapore Walking Tour (4–8 Hrs, Flexible Plan)
$230Source: Viator · Prices in USD · Affiliate links.
🧳 What do you need to know before flying to Singapore?
🛂 Do Americans need a visa for Singapore?
US citizens don't need a visa for stays up to 90 days — tourism, business, or family visits all qualify. The passport needs 6 months of validity left, plus a blank page for the entry stamp. File the free Singapore Arrival Card with health declaration online within 3 days of landing.
🕐 What's the time difference?
Singapore sits at UTC+8 year-round — no daylight saving to track. That's 13 hours ahead of Chicago most of the year, 14 hours ahead during US Daylight Saving. Landing midmorning after a red-eye connection means the first day is a fight against a 13-hour clock flip.
🚇 How do you get from the airport to the city?
Changi Airport to Marina Bay/downtown: about 12 miles (20 km) northeast of the center.
| Option | Time | Cost | Best for |
|---|---|---|---|
| MRT (subway) | ~30 min | ~S$2 (~$1.55) | Budget solo travelers |
| Grab/taxi ✅ | ~20-25 min | S$25-35 (~$19-27) | Groups, late arrivals — editor's pick |
| Airport shuttle bus | ~35-45 min | ~S$9 (~$7) | Hotel-direct drop-off |
| Private transfer | ~20 min | S$45-60 (~$35-46) | Families with luggage |
Editor's pick: Grab beats a taxi queue after a 20+ hour itinerary and costs about the same.
💷 What about money and tipping?
1 USD converts to roughly 1.29 Singapore dollars (SGD) as of 2026 — carry a no-foreign-fee card since SGD is standard everywhere except some hotel bars. ATMs at Changi post live rates; airport currency counters mark up 5-8%.
Singapore currency snapshot
1 USD = 1.29 SGD
1 SGD = $0.773 USD
Singapore Dollar
Source: open.er-api.com · Updated Jul 1, 2026 · Rates fluctuate — check before booking.
📱 Will your phone work?
US carriers charge $10-12/day for international roaming in Singapore — skip it. A local eSIM (Airalo, Saily, or Yesim) activates before landing and runs $4-8 for a week of data on Singtel or StarHub towers.
☁️ Singapore climate overview
Avoid: Jan, Mar, AprHistorical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.
Jan
85°/73°F
16.3″ rain
Feb
87°/75°F
2.9″ rain
Mar
85°/76°F
12.3″ rain
Apr
88°/76°F
12.6″ rain
May
90°/75°F
8.7″ rain
Jun
89°/77°F
5.5″ rain
Jul
87°/78°F
3.6″ rain
Aug
87°/75°F
8.9″ rain
Sep
86°/75°F
6.7″ rain
Oct
89°/75°F
5.6″ rain
Nov
84°/77°F
5.0″ rain
Dec
86°/74°F
9.8″ 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 Chicago to Singapore flights
Search flights →🛫 Flying from Chicago — airport tips
ORD Terminal 5 — Cathay Pacific, Korean Air, Qatar Airways, ANA gates (Cathay Pacific / Korean Air / Qatar Airways / ANA)
- Security lines peak 3-5pm — arrive 3 hours before an international departure
- Korean Air's lounge sits near gate M7; Priority Pass and LoungeKey both work at the nearby Swissport lounge
- All four carriers clear passport control before the gate, not just at check-in
ORD Terminal 1 — United domestic-to-SFO connection (United Airlines)
- Domestic Terminal 1 to SFO's international connection needs re-clearing security if the layover runs under 2 hours
- United's Polaris lounge in Terminal 1 is open to connecting premium-cabin passengers
- Book a 2h15m+ SFO layover minimum — ORD-SFO delays are common in winter
🚐 Skip the hassle? Book a private airport transfer
Fixed price, meet & greet at arrivals, door-to-door service
💡 Insider tips: Chicago to Singapore
Skip Istanbul or Frankfurt reroutes — they add 3+ hours for no price benefitMubboo original data
Turkish Airlines and Lufthansa both sell Chicago-Singapore itineraries through Istanbul or Frankfurt, and they rank high in some fare-search tools. Comparing total elapsed time across every connection option, both routings run 3-5 hours longer than the five carriers on this page, with no real price advantage. Route through Doha, Hong Kong, Seoul, Tokyo, or San Francisco instead unless a European stopover is the specific goal.
Tuesday and Wednesday departures save $150-250 over weekend faresMubboo original data
Across all five carriers, Friday-through-Sunday departures price $150-250 higher round trip than Tuesday or Wednesday, because the domestic-to-hub leg still follows US business-travel demand even though the final stop is over 9,000 miles away. This gap holds most consistently on United's SFO routing and Qatar's Doha routing, where the domestic segment prices somewhat independently of the long-haul leg.
Changi's free layover perks only kick in past 5.5 hours, and only if the visa clears
Changi Airport offers a free city tour, rooftop pool, butterfly garden, and movie theaters to transit passengers with a layover of 5.5+ hours — but eligibility depends on passport and visa status. US passport holders on a same-day connection typically qualify, but confirm with the carrier's transit desk on arrival rather than assuming.
The 2-checked-bag allowance applies to all five carriers, not just United
US DOT rules require 2 free checked bags (up to 50lbs/23kg each) in economy on any itinerary originating in the United States, even on foreign carriers. Cathay Pacific, ANA, Korean Air, and Qatar Airways all match United's 2-bag allowance on this specific route — a rule many travelers assume only applies to US-based airlines.
ORD Terminal 5 security peaks 3-5pm — clear it before the afternoon rushMubboo original data
Checking wait patterns at O'Hare's international terminal, security lines consistently run longest between 3 and 5pm, when domestic connecting banks overlap with international check-in. Travelers on evening Qatar Airways or Korean Air departures should budget a full 3 hours before departure, or use Global Entry/CLEAR to skip the worst of it.
👥 Who flies this route — and what they should know
First-time Singapore leisure tourist
Featured this monthRecommended: Cathay Pacific through Hong Kong, economy, on a morning ORD departure that lands in Singapore the following evening. The 3h45m HKG-SIN hop is short enough that a 2-hour layover feels comfortable, and Hong Kong's airport has enough English signage that a tight connection isn't stressful on a first international long-haul. Base near Marina Bay or the Esplanade for walkable access to Gardens by the Bay, the Singapore Flyer, and Chinatown's hawker centers. Mubboo Pick: book the Cathay Pacific routing 3-4 months out and plan 5 nights minimum — Singapore's neighborhood density rewards a slower first visit over a rushed 2-night stopover. Skip renting a car entirely; the MRT covers everything a first-timer needs for about a dollar a ride, and Grab handles the rest.
Solo backpacker and digital nomad
Recommended: Korean Air through Seoul Incheon, economy, with a self-arranged 2-3 day Seoul stopover before continuing to Singapore. Korean Air's transit rules make this one of the easiest stopover-plus-final-destination itineraries on this list, and Seoul adds a second city at close to zero extra airfare. In Singapore, base near Little India, the city's best pick for budget-conscious stays close to Tekka Centre's 24-hour food stalls. Mubboo Pick: the Seoul stopover is the single best value-add on this route for anyone with flexible dates and a backpack instead of checked luggage. Skip Sentosa's paid attractions on a tight budget; the free beaches and cable car views cover most of what a short visit needs. Digital nomads should know Singapore's fast public WiFi covers most cafes and coworking spaces in Chinatown and the CBD.
Business traveler needing lie-flat rest
Recommended: Qatar Airways through Doha, Qsuite business class, on an evening ORD departure timed to land in Doha for a same-morning connection. Qsuite's closing door and flat-bed layout are built for exactly this kind of back-to-back long-haul — landing in Singapore closer to rested than jet-lagged matters if meetings start the next morning. The Doha layover typically runs under 2 hours in business, using Qatar's fast-track connections at Hamad International. Mubboo Pick: pay the premium for Qsuite on this specific route over any other business product here — no other carrier on this list offers a fully private suite for the full ORD-SIN journey. Anti-rec: skip United's SFO routing in business class unless chasing MileagePlus status, since the SFO connection adds a domestic-cabin downgrade most Qsuite flyers won't accept.
Family with kids heading to Sentosa
Recommended: ANA through Tokyo Haneda, economy, split across two manageable long-haul segments instead of one marathon flight. Breaking roughly 21 hours of flying into a 13h40m and a 7h20m leg with a real layover gives kids a chance to walk around Haneda's terminal instead of sitting still all day. ANA's crew consistently ranks among the most kid-friendly in Star Alliance, and Haneda's terminal has enough clean, quiet space for a restless toddler. Once in Singapore, base near Sentosa or Marina Bay for easy access to Universal Studios, the S.E.A. Aquarium, and the free beaches. Mubboo Pick: book ANA's two-segment routing over Cathay Pacific's faster-but-tighter connection when traveling with young kids — the extra layover time matters more than shaving hours off the total trip.
Points and miles maximizer
Recommended: United Airlines through San Francisco, booked with MileagePlus miles or a co-brand card transfer, keeping the entire itinerary on a single carrier and alliance. Star Alliance status carries through both the domestic ORD-SFO leg and the 17-hour SFO-SIN long-haul, so elites get lounge access and upgrade priority on both segments instead of just one. This routing also opens Star Alliance award availability through partners like ANA if United's own inventory is thin on the travel dates. Mubboo Pick: search United's own site plus ANA award charts before booking cash, since a Star Alliance partner redemption often beats United's own price for this specific long-haul segment. Anti-rec: don't book Qatar Airways Qsuite with United miles — the redemption rate rarely favors it compared to a straight cash Qsuite fare.
Tokyo stopover food traveler
Recommended: ANA or Japan Airlines through Tokyo Haneda or Narita, economy, with a self-booked 3-4 day Tokyo stopover before continuing to Singapore. Splitting the routing this way turns one long-haul flight into two trip highlights instead of one grueling day of travel. Both airports allow visa-free transit for US passport holders on a connecting itinerary, and Haneda's proximity to central Tokyo (about 30 minutes by train) makes a short stopover genuinely usable, not just a layover on paper. Mubboo Pick: this routing is the best two-country trip on this entire list — Tokyo's food scene rivals Singapore's, and the added cost over a direct connection is usually under $150. Anti-rec: don't attempt this stopover on Narita if the total layover runs under 8 hours; the airport transfer alone eats too much of it.
⚖️ Flight delayed or canceled?
US DOT rules require rebooking accommodation only for controllable delays on domestic US segments; none of these five routings cross EU airspace, so EU261 doesn't apply. Singapore's own consumer protections for delayed connections are limited — check each carrier's tariff for its own missed-connection rebooking policy before booking a tight layover.
📱
Free option: Changi Airport offers free WiFi throughout all four terminals — enough to text and check maps before the eSIM kicks in.
Skip the $10-12/day US roaming fee. A Singapore-ready eSIM activates before landing and covers Changi to Chinatown on Singtel or StarHub towers.
🛡️
Free option: Check whether a credit card already includes trip-delay coverage — many premium travel cards cover delays of 6+ hours automatically.
A missed connection in Doha, Hong Kong, or Seoul isn't covered by US airline rules once past US airspace. A policy with trip-interruption and delay coverage matters more on a one-stop routing than a nonstop.
🚕
Free option: The MRT reaches most downtown hotels for about $1.55 if traveling light and open to a short walk.
Skip the taxi queue after a 20+ hour itinerary. A pre-booked private transfer from Changi to Marina Bay or Orchard Road runs about the same as a metered taxi but with a driver already waiting.
Emergency contacts in Singapore
Frequently asked questions about Chicago to Singapore flights
No. No airline flies ORD-SIN nonstop — the route sits well outside nonstop range for any Midwest-hub carrier. All five practical options connect through San Francisco, Tokyo, Hong Kong, Seoul, or Doha. See the comparison above for full pricing and layover detail on each.
Researched by Mubboo Editorial Team · Reviewed by Richard Lee, Founder
Prices from Aviasales. Seasonal advice updated: July 2026 · Last editorial review: 2026-07-01T18:02:21.144Z · Government info: travel.state.gov
M verdicts are based on editorial research — not pulled from a database.