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Find cheap United Airlines flights to Seattle from $70

1 adult
0 bags
Tue 5/28
Tue 6/4

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Good to know

Low season

January

High season

July

Cheapest flight

$70

Average price round-trip

$855

Good deal round-trip

$750

Good deal one-way

$637
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from Chicago O'Hare Airport to Seattle
(avg. price over the last 2 weeks)
or less
or less

When to book flights with United Airlines to Seattle

Average price per month
Flight prices as travel date approaches

FAQs for flying to Seattle with United Airlines

  • Which other airlines fly to Seattle?

    Along with United Airlines, you can also fly to Seattle with American Airlines, Alaska Airlines, Delta, Alaska Airlines and Delta.

  • Which airport do United Airlines flights to Seattle fly into?

    You’ll fly into Seattle/Tacoma Airport when flying to Seattle with United Airlines.

  • Are there any other airlines in Star Alliance that fly to Seattle?

    Unfortunately, there are no other airlines in Star Alliance that fly to Seattle.

United Airlines customer reviews

7.4
GoodBased on 11,221 verified guest reviews
7.1Entertainment
7.2Comfort
7.7Boarding
8.1Crew
6.7Food
Pros +
Cons -
Traveler rating:
Sort by:
R
6.8 Okay
Pros:The crew was excellent - courteous/aware/friendly. The flight, although 2 hours delayed (9;20pm scheduled departure) was pleasant and smooth. Also, the de-boarding process was surprisingly quick.
Cons:A 2 hour delay at 9:20pm at night is unfortunate yet frustrating experience, especially when we moved our flight up due to a travel warning for EWR (ironically enough, our originally scheduled flight (1922 MCO-EWR). I'm giving an overall OK (instead of good) due to the fact that there were no snacks (although I did not want anything, it didn't go unnoticed) and although there was free inflight entertainment for personal devices, I feel the passengers should have been given free internet access - in my opinion, it would have been the appropriate thing to do. In any case, this experience doesn't change my positive opinion of United.
A
4.6 Mediocre
Cons:The first contact in the airport was quite rude when informing me that I had to measure my suitcase for size. I have carried this suitcase on on every airline for over 10 years....the size got smaller and United got $25.00....not happy. There was NO free movies, no access to TV, flight pattern....nothing and it could not be turned off. ONE cookie for a coast-to-coast flight. What happened to United?
A
10.0 Wonderful
On time departure and arrival.
A
10.0 Wonderful
Pros:Nice smooth flight
Cons:Everything
B
5.6 Fair
Cons:More water, drinks. The food was absolutely horrible.
A
7.3 Good
Pros:Amazing crew
Cons:Tight seats, no access to actual WiFi unless you purchase a yearly or monthly plan
S
4.6 Mediocre
Pros:Ordered the Protein Box, it was ok.. crew members nice.
Cons:The Smell on the flight was unacceptable, I was sitting about a couple rows across the middle bathroom, and it smelled horrible, I had never had an experience like this on any other flight, I fly United many times a year, and this had me really uncomfortable for almost 5 hours, since the flight was delayed almost 1.5 hours while we sat onboard the aircraft at the gate, that had me miss dinner plans too in San Francisco as well. I really hope they can fix that, For the good of the passengers, felt like I was going to be nauseous all the time, and I'm really not someone that complains or takes time to review badly.
N
4.6 Mediocre
Cons:2.5 hour delay. No working bathrooms. Couldn't hear the tv and headphones that they gave out were useless.
A
2.0 Poor
Cons:Purchased tickets 4 months before this flight for a departure time of 6:05pm. Tried to check in and check baggage at 9:30am but was turned away saying I could only check in 3 hrs prior to my flight. Came back at 3:00pm to check-in and they could not find my information. An hour later they find out that they cancelled the flight and moved my departure time to 8:25am for that day. They say they emailed 3 times in May but I never got it (I'm a bit crazy about my email staying clean) so they say it might have went in to my spam folder due to they types of emails they send to customers. They only kept repeating that they notified me so there is nothing they could do. I ended up going to Air Canada to get a flight to PHX the next day. No apology, no help, no hotel for the night...Terrible experience by United. They gave me a customer relations group contact information to follow up with for complaint but since they sent me the 3 emails in May about the change, they have no liability to fix the situation.
A
2.0 Poor
Cons:Departure was delayed. No explanation. The boarding area is crowded and confusing. The plane's bins were too small for roller boards so passengers had to carry bags outdoors in snow and terrible wind, to get them loaded. The Newark airport where the plane landed was miserable! Departure from Newark was worse than landing if that could be possible! Awful!
Read more about United Airlines

Book Cheap flights with United Airlines to Seattle

Recent round-trip flight deals

5/28Tue
nonstopUnited Airlines
2h 11mSFO-SEA
6/4Tue
nonstopUnited Airlines
2h 18mSEA-SFO
$139
10/9Wed
nonstopUnited Airlines
4h 33mORD-SEA
10/15Tue
1 stopUnited Airlines
10h 01mSEA-ORD
$144
6/25Tue
nonstopUnited Airlines
2h 11mSFO-SEA
7/10Wed
nonstopUnited Airlines
2h 19mSEA-SFO
$146
5/20Mon
nonstopUnited Airlines
2h 24mSFO-SEA
5/22Wed
nonstopUnited Airlines
2h 17mSEA-SFO
$153
9/7Sat
nonstopUnited Airlines
2h 13mSFO-SEA
9/15Sun
nonstopUnited Airlines
2h 14mSEA-SFO
$162
5/28Tue
nonstopUnited Airlines
2h 45mLAX-SEA
5/29Wed
nonstopUnited Airlines
2h 47mSEA-LAX
$165
5/31Fri
nonstopUnited Airlines
2h 11mSFO-SEA
6/7Fri
nonstopUnited Airlines
2h 24mSEA-SFO
$167
5/29Wed
nonstopUnited Airlines
2h 45mLAX-SEA
6/1Sat
nonstopUnited Airlines
2h 46mSEA-LAX
$168
10/18Fri
nonstopUnited Airlines
4h 33mORD-SEA
10/22Tue
nonstopUnited Airlines
4h 03mSEA-ORD
$169
10/18Fri
nonstopUnited Airlines
4h 33mORD-SEA
10/22Tue
1 stopUnited Airlines
10h 01mSEA-ORD
$174
5/28Tue
nonstopUnited Airlines
2h 45mLAX-SEA
5/30Thu
nonstopUnited Airlines
2h 47mSEA-LAX
$174
6/22Sat
nonstopUnited Airlines
2h 45mLAX-SEA
6/25Tue
nonstopUnited Airlines
2h 46mSEA-LAX
$175
5/18Sat
nonstopUnited Airlines
2h 58mLAX-SEA
5/25Sat
nonstopUnited Airlines
2h 44mSEA-LAX
$177
6/11Tue
nonstopUnited Airlines
2h 11mSFO-SEA
9/8Sun
nonstopUnited Airlines
2h 14mSEA-SFO
$177
5/13Mon
1 stopUnited Airlines
8h 43mORD-SEA
5/18Sat
nonstopUnited Airlines
4h 02mSEA-ORD
$178
5/21Tue
nonstopUnited Airlines
2h 58mLAX-SEA
5/23Thu
nonstopUnited Airlines
2h 46mSEA-LAX
$178
7/13Sat
nonstopUnited Airlines
2h 45mLAX-SEA
7/27Sat
nonstopUnited Airlines
2h 47mSEA-LAX
$179
10/9Wed
1 stopUnited Airlines
6h 51mORD-SEA
10/15Tue
1 stopUnited Airlines
10h 01mSEA-ORD
$183
6/1Sat
nonstopUnited Airlines
2h 45mLAX-SEA
6/3Mon
nonstopUnited Airlines
2h 47mSEA-LAX
$183
6/13Thu
nonstopUnited Airlines
2h 45mLAX-SEA
6/18Tue
nonstopUnited Airlines
2h 46mSEA-LAX
$188

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Recent one-way flight deals

8/21Wed
nonstopUnited Airlines
4h 33mORD-SEA
$70
5/28Tue
nonstopUnited Airlines
2h 11mSFO-SEA
$70
7/2Tue
nonstopUnited Airlines
2h 07mSFO-SEA
$77
7/6Sat
nonstopUnited Airlines
2h 07mSFO-SEA
$79
5/22Wed
nonstopUnited Airlines
2h 58mLAX-SEA
$80
5/31Fri
nonstopUnited Airlines
2h 11mSFO-SEA
$84
10/1Tue
1 stopUnited Airlines
5h 59mLAX-SEA
$85
5/28Tue
nonstopUnited Airlines
2h 45mLAX-SEA
$86
6/22Sat
nonstopUnited Airlines
2h 45mLAX-SEA
$90
5/20Mon
nonstopUnited Airlines
2h 58mLAX-SEA
$95
5/26Sun
nonstopUnited Airlines
2h 45mLAX-SEA
$99
5/14Tue
nonstopUnited Airlines
4h 34mORD-SEA
$100
5/29Wed
1 stopUnited Airlines
4h 40mONT-SEA
$101
6/3Mon
nonstopUnited Airlines
2h 11mSFO-SEA
$103
6/14Fri
nonstopUnited Airlines
2h 11mSFO-SEA
$108
5/13Mon
1 stopUnited Airlines
8h 33mORD-SEA
$109
7/1Mon
nonstopUnited Airlines
2h 45mLAX-SEA
$109
5/30Thu
1 stopUnited Airlines
4h 40mONT-SEA
$111
8/20Tue
nonstopUnited Airlines
4h 33mORD-SEA
$115
5/8Wed
nonstopUnited Airlines
6h 02mEWR-SEA
$119

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Flights to Seattle - United Airlines

Destination:

Seattle/Tacoma Intl (SEA)United States

Return flight deals:

Seattle/Tacoma Intl - United States

Cabin classes:

$214
First Class flights to Seattle
$318
Business Class flights to Seattle
$190
$68

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