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Find cheap United Airlines flights to St. Louis from $115

1 adult
0 bags
Sat 6/15
Sat 6/22

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Good to know

Low season

January

High season

May

Cheapest flight

$115

Average price round-trip

$329

Good deal one-way

$293
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Newark Liberty Airport to St. Louis
(avg. price over the last 2 weeks)
or less

When to book flights with United Airlines to St. Louis

Average price per month
Flight prices as travel date approaches

FAQs for flying to St. Louis with United Airlines

  • Is United Airlines cheaper than other airlines flying to St. Louis?

    With an average return price of $467, United Airlines is the most expensive airline flying into St. Louis. The cheapest airline flying to St. Louis is Frontier.

  • Which other airlines fly to St. Louis?

    Along with United Airlines, you can also fly to St. Louis with American Airlines, Delta, Spirit Airlines, American Airlines, Alaska Airlines, Delta and Frontier.

  • How much is a flight to St. Louis with United Airlines?

    On average, United Airlines flights to St. Louis cost $309 for one-way and $467 return.

  • Which airport do United Airlines flights to St. Louis fly into?

    You’ll fly into St. Louis Lambert Airport when flying to St. Louis with United Airlines.

  • Are there any other airlines in Star Alliance that fly to St. Louis?

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

See more FAQs

Top tips for your flights to St. Louis with United Airlines

  • Looking to fly from the United States to St. Louis with United Airlines? 25% of our users found flights for the following prices or less: From Newark Airport $169 one-way, $367 round-trip.
  • The cheapest flight to St. Louis with United Airlines found on KAYAK in the last 2 weeks departed from Washington, D.C. Dulles Intl Airport and cost $100.

United Airlines customer reviews

7.4
GoodBased on 10,946 verified guest reviews
8.1Crew
7.2Comfort
6.7Food
7.1Entertainment
7.7Boarding
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
Pros:Nice smooth flight
Cons:Everything
A
10.0 Wonderful
On time departure and arrival.
A
7.0 Good
Cons:THe sits where very uncomfortable.
A
2.0 Poor
Cons:Cancelled due to Maintenance. No Communication.
B
8.3 Very good
Pros:Prompt departures, pleasant staff clean plane
A
2.0 Poor
Pros:Everything was good, thanks to all.
Cons:Thanks to crews for safe flight
A
3.3 Poor
Cons:See above.
A
10.0 Wonderful
Pros:Availability of flights out of Chicago
Cons:Availability of flights out of Chicago
Read more about United Airlines

Book Cheap flights with United Airlines to St. Louis

Recent round-trip flight deals

6/5Wed
nonstopUnited Airlines
2h 12mIAD-STL
6/24Mon
1 stopUnited Airlines
6h 16mSTL-IAD
$199
7/10Wed
1 stopUnited Airlines
6h 48mDCA-STL
7/13Sat
1 stopUnited Airlines
4h 03mSTL-DCA
$218
6/6Thu
1 stopUnited Airlines
6h 50mIAD-STL
6/8Sat
1 stopUnited Airlines
6h 16mSTL-IAD
$228
7/9Tue
nonstopUnited Airlines
2h 38mEWR-STL
7/16Tue
nonstopUnited Airlines
2h 22mSTL-EWR
$229
10/25Fri
1 stopUnited Airlines
4h 37mIAD-STL
10/28Mon
1 stopUnited Airlines
4h 13mSTL-IAD
$238
6/15Sat
nonstopUnited Airlines
2h 39mEWR-STL
6/22Sat
nonstopUnited Airlines
2h 29mSTL-EWR
$239
7/9Tue
nonstopUnited Airlines
2h 38mEWR-STL
7/11Thu
nonstopUnited Airlines
2h 22mSTL-EWR
$244
6/10Mon
1 stopUnited Airlines
5h 11mIAD-STL
6/12Wed
nonstopUnited Airlines
2h 10mSTL-IAD
$248
5/30Thu
1 stopUnited Airlines
5h 43mIAD-STL
6/1Sat
1 stopUnited Airlines
4h 16mSTL-IAD
$249
6/15Sat
nonstopUnited Airlines
2h 49mEWR-STL
7/13Sat
1 stopUnited Airlines
6h 20mSTL-EWR
$254
6/5Wed
nonstopUnited Airlines
2h 12mIAD-STL
6/11Tue
1 stopUnited Airlines
6h 16mSTL-IAD
$259
7/15Mon
nonstopUnited Airlines
2h 38mEWR-STL
7/18Thu
nonstopUnited Airlines
2h 22mSTL-EWR
$259
6/11Tue
nonstopUnited Airlines
2h 38mEWR-STL
6/15Sat
nonstopUnited Airlines
2h 22mSTL-EWR
$264
5/30Thu
nonstopUnited Airlines
2h 12mIAD-STL
6/1Sat
1 stopUnited Airlines
4h 16mSTL-IAD
$267
5/30Thu
1 stopUnited Airlines
5h 08mBOS-STL
6/5Wed
1 stopUnited Airlines
7h 08mSTL-BOS
$269
8/19Mon
1 stopUnited Airlines
5h 22mEWR-STL
8/26Mon
nonstopUnited Airlines
2h 28mSTL-EWR
$269
7/30Tue
1 stopUnited Airlines
6h 47mIAD-STL
7/31Wed
nonstopUnited Airlines
2h 10mSTL-IAD
$274
8/18Sun
1 stopUnited Airlines
4h 55mIAD-STL
8/20Tue
nonstopUnited Airlines
2h 08mSTL-IAD
$279
6/11Tue
nonstopUnited Airlines
2h 38mEWR-STL
6/14Fri
nonstopUnited Airlines
2h 29mSTL-EWR
$279
9/26Thu
nonstopUnited Airlines
2h 37mEWR-STL
9/29Sun
nonstopUnited Airlines
2h 28mSTL-EWR
$280

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Recent one-way flight deals

7/31Wed
nonstopUnited Airlines
2h 38mEWR-STL
$115
6/5Wed
nonstopUnited Airlines
2h 12mIAD-STL
$120
6/26Wed
nonstopUnited Airlines
2h 39mEWR-STL
$126
5/29Wed
nonstopUnited Airlines
2h 50mEWR-STL
$127
6/27Thu
nonstopUnited Airlines
2h 38mEWR-STL
$130
5/29Wed
1 stopUnited Airlines
4h 27mEWR-STL
$136
5/31Fri
1 stopUnited Airlines
6h 50mIAD-STL
$140
6/4Tue
1 stopUnited Airlines
7h 11mLAX-STL
$149
6/29Sat
nonstopUnited Airlines
2h 38mEWR-STL
$150
5/30Thu
nonstopUnited Airlines
2h 38mEWR-STL
$162
6/5Wed
nonstopUnited Airlines
2h 39mEWR-STL
$163
7/29Mon
nonstopUnited Airlines
2h 38mEWR-STL
$165
10/16Wed
nonstopUnited Airlines
2h 23mIAD-STL
$172
5/21Tue
nonstopUnited Airlines
2h 41mEWR-STL
$176
7/2Tue
nonstopUnited Airlines
2h 07mIAD-STL
$188
11/2Sat
2 stopsUnited Airlines
9h 40mBOS-STL
$192
6/4Tue
1 stopUnited Airlines
7h 11mLAX-STL
$194
9/8Sun
nonstopUnited Airlines
2h 42mEWR-STL
$200
5/30Thu
2 stopsUnited Airlines
10h 36mEWR-STL
$202
6/2Sun
1 stopUnited Airlines
6h 44mIAD-STL
$204

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Flights to St. Louis - United Airlines

Destination:

Lambert-St Louis (STL)United States

Return flight deals:

Lambert-St Louis - United States

Cabin classes:

$490
First Class flights to St. Louis
$392
Business Class flights to St. Louis
$407
$50

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