
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $242 (Gotogate) |
One-way from | $124 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $302 |
Good round-trip deal | $359 or less |
Good one-way deal | $185 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Wed 6/10
6:55 am-9:31 am
Nonstop4h 36m
Seattle/Tacoma Intl
Mon 6/15
5:40 pm-11:39 pm
Nonstop3h 59m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Thu 6/11
7:48 pm-10:39 pm
Nonstop4h 51m
Seattle/Tacoma Intl
Tue 6/16
11:52 pm-5:58 am
Nonstop4h 06m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Sat 6/20
7:48 pm-10:39 pm
Nonstop4h 51m
Seattle/Tacoma Intl
Thu 7/2
7:01 am-1:16 pm
Nonstop4h 15m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Thu 6/11
6:55 am-9:31 am
Nonstop4h 36m
Seattle/Tacoma Intl
Thu 6/18
5:40 pm-11:39 pm
Nonstop3h 59m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Wed 6/10
9:15 pm-11:59 pm
Nonstop4h 44m
Seattle/Tacoma Intl
Tue 6/23
5:00 pm-11:07 pm
Nonstop4h 07m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Wed 7/15
7:00 am-9:40 am
Nonstop4h 40m
Seattle/Tacoma Intl
Tue 7/21
7:01 am-1:16 pm
Nonstop4h 15m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Sat 6/13
7:17 pm-9:58 pm
Nonstop4h 41m
Seattle/Tacoma Intl
Tue 6/23
3:55 pm-5:00 am
1 stop11h 05m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Thu 5/28
6:00 am-8:34 am
Nonstop4h 34m
Seattle/Tacoma Intl
Mon 6/1
9:00 am-6:50 pm
1 stop7h 50m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Fri 5/8
6:15 pm-11:30 pm
1 stop7h 15m
Seattle/Tacoma Intl
Sat 5/9
5:45 am-2:20 pm
1 stop6h 35m
ChicagoSeattle
ORD - SEA
ORDSEA
Chicago O'Hare Intl
Wed 6/10
6:00 am-8:38 am
Nonstop4h 38m
Seattle/Tacoma Intl
Sun 6/14
12:17 am-6:20 am
Nonstop4h 03m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Chicago O'Hare Intl Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of $228). Flying from Chicago O'Hare Intl Airport to Seattle in June is currently the most expensive (average of $347). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to Seattle is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 10% on airfare.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Seattle flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Las Vegas (LAS) – chosen by Cheapflights users on 67% of 1-stop itineraries from Chicago O'Hare Intl Airport to Seattle on Cheapflights.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $240.
Flights via Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 11h 52m.
Flights via Las Vegas (LAS) offer the fastest connection on this route, with an average layover time of 7h 36m.
Boarding
Overall
Entertainment
Comfort
Food
Crew
Reviews
Eugene,Mar 2026
MFR - SEA
Boarding
Overall
Entertainment
Comfort
Food
Crew
Reviews
Eugene,Mar 2026
MFR - SEA
Boarding
Overall
Entertainment
Comfort
Food
Crew
Reviews
Eugene,Mar 2026
MFR - SEA
Boarding
Overall
Entertainment
Comfort
Food
Crew
Reviews
Eugene,Mar 2026
MFR - SEA
Boarding
Overall
Entertainment
Comfort
Food
Crew
Reviews
Eugene,Mar 2026
MFR - SEA
Boarding
Overall
Entertainment
Comfort
Food
Crew
Reviews
Eugene,Mar 2026
MFR - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$84 | Average$229 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$110 | Average$270 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$153 | Average$258 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$168 | Average$295 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$174 | Average$331 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$324 | FlexibilityNo cancel fee | On-time69% |