Cheap flights from Chicago to Seattle (ORD–SEA)
ORDChicago O'Hare International Airport
United States
United States
SEASeattle–Tacoma International Airport
United States
United States
Alaska Airlines, American Airlines, Delta Air Lines and United Airlines fly Chicago to Seattle (ORD–SEA) nonstop and back, a great-circle distance of 2,760 km (1,720 mi).
- From
- ORD
- Chicago
- To
- SEA
- Seattle
- Nonstop
- Yes · 4 airlines
- Airlines
- AS · AA · DL · UA
- Cheapest fare found
- $142 one-way
- Distance
- 2,760 km (1,720 mi)
- Time difference
- Seattle 2 hours behind
- Most flights
- Alaska Airlines
- Time in the air
- 3h 58m · 3h 20m back
- On time (Touchdown Index)
- 74.7%
- Flights a week
- AS ~30 · AA ~27 · DL ~18 · UA ~27
- Aircraft seen
- Airbus A321 · Boeing 737-900 · Boeing 737 Max 9
Network data imported from airport and airline sources:· How we verify
Chicago to Seattle fares by month
Cheapest one-way fare found: $142 for March 2027 on Frontier Airlines (1 stop). Nonstop from $145.
- Oct ’26$210
- Nov ’26$145
- Jan ’27$146
- Feb ’27$147
- Mar ’27$142
- Apr ’27$240
- May ’27$240
- Jun ’27$240
- Aug ’27$240
Cheapest one-way fares per month of departure in the Aviasales price cache, found . Fares change by the hour: the live fare is shown when you search.
When to fly ORD–SEA
For Chicago O'Hare (ORD) to Seattle–Tacoma (SEA), March 2027 had the lowest fare found ($142). Days in Seattle average 18–28 °C in May, June, July, August and September. Set your watch 2 hours back on landing at SEA.
Chicago to Seattle: frequently asked questions
Fares: Aviasales price cache, 8 October 2026; tracked flights between 6 September and 3 October 2026, from public ADS-B data.
How much is a flight from Chicago O'Hare (ORD) to Seattle–Tacoma (SEA)?
From $142 one-way, the cheapest fare found for March 2027 on Frontier Airlines with 1 stop; nonstop from $145 (found 8 October 2026).
How long is the ORD–SEA flight?
3h 58m wheels-up to wheels-down, the median of 415 tracked flights; SEA–ORD took 3h 20m.
Which airlines fly ORD–SEA direct?
Alaska Airlines, American Airlines, Delta Air Lines and United Airlines.
What is the cheapest month to fly ORD–SEA?
March 2027, at $142; the dearest month found was $240.
What is the time difference between Chicago and Seattle?
Seattle is 2 hours behind Chicago: a ORD departure at noon is 10:00 local time in SEA.
Is ORD–SEA usually on time?
74.7% of 750 ORD–SEA flights landed within 15 minutes of their usual time; 8.5% were over an hour late.
How many ORD–SEA flights a week?
Alaska Airlines 30, American Airlines 27, Delta Air Lines 18 and United Airlines 27 each way.
What aircraft fly ORD–SEA?
Airbus A321, Boeing 737-900 and Boeing 737 Max 9.
Seattle to Chicago: the return flight (SEA–ORD)
All 4 airlines also fly SEA–ORD nonstop.
The return takes 3h 20m in the air (median of 410 tracked flights), 38 minutes shorter than ORD–SEA.
Airlines flying ORD–SEA nonstop
| Airline | Usually takes off (ORD time) | Type | Alliance | Notes |
|---|---|---|---|---|
 Alaska Airlines AS | 06:08–20:04 | full-service | oneworld | — |
 American Airlines AA | 07:39–22:06 | full-service | oneworld | — |
 Delta Air Lines DL | 07:14–19:14 | full-service | SkyTeam | — |
| United Airlines UA | 07:26–20:57 | full-service | Star Alliance | — |
One-stop alternatives to flying ORD–SEA nonstop
One airline on both legs; check it's sold as one ticket.
- Via Minneapolis (MSP) with Delta Air Lines and Sun Country Airlines: 2,780 km (1,730 mi) flown, 1% further than nonstop.
- Via Calgary (YYC) with
WestJet: 2,950 km (1,830 mi) flown, 7% further than nonstop. - Via Portland (PDX) with Alaska Airlines: 3,000 km (1,860 mi) flown, 9% further than nonstop.
- Via Denver (DEN) with
Frontier Airlines and United Airlines: 3,070 km (1,910 mi) flown, 11% further than nonstop. - Via Salt Lake City (SLC) with Delta Air Lines and Frontier Airlines: 3,110 km (1,930 mi) flown, 13% further than nonstop.
ORD–SEA route map
More from Chicago and Seattle
Other arrivals in United States
Also nonstop from ORD, nearest to SEA first (straight-line distance):
- ORD–PDX: Portland · 208 km (129 mi) from SEA
- Spokane (GEG) airport guide · 359 km (223 mi) from SEA
- Eugene (EUG) · 376 km (234 mi) from SEA
- Kalispell (FCA) · 608 km (378 mi) from SEA
- Missoula (MSO) · 624 km (388 mi) from SEA
Explore the airlines’ route maps
- Alaska Airlines route map and destinations
- American Airlines route map and destinations
- Delta Air Lines route map and destinations
- United Airlines route map and destinations
Plan your arrival at Seattle–Tacoma International Airport (SEA)
Departure
Chicago O'Hare International Airport
O'Hare (ORD), Chicago. In our data, 48 airlines fly nonstop from ORD to 181 destinations.
View ORD airport guide →Arrival
Seattle–Tacoma International Airport
2 ways into Seattle, fastest from 25 min:
- Link light rail (1 Line) 38–40 min · $3
- Taxi or rideshare 25–45 min
Other nonstop airport pairs, Chicago to Seattle
Chicago and Seattle are connected nonstop from more than one airport. Compare the pairs by airline count:
Onward from Seattle
Places you can't fly to nonstop from ORD, but can from SEA — for a stopover or a second leg.
Related routes
Sources
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
Flight tracking: adsb.lol community ADS-B data (CC0), 6 September – 3 October 2026. Times are median wheels-up to wheels-down; add taxiing for gate-to-gate.
Report a change — seen something different at the airport or on the airline's site? We re-check and log corrections publicly.