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Find cheap United Airlines flights to London from $259

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Flights Deals

Cheap United Airlines Flight Deals to London

 
Here are some of the best deals found on KAYAK recently from United Airlines to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip United Airlines flight deals to London

KAYAK's recommended round-trip United Airlines deals departing in the coming months to London.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
11:30 am - 9:29 pmSEA-YXU
6h 59m1 stop
United Airlines Logo
6:15 am - 10:45 amYXU-SEA
7h 30m1 stop
$308United Airlines
Find Deal
Tue, May 13 - Thu, May 15
United Airlines Logo
11:50 pm - 2:58 pmSEA-YXU
12h 08m2 stops
United Airlines Logo
6:15 am - 10:51 amYXU-SEA
7h 36m1 stop
$318United Airlines
Find Deal
Fri, Jun 13 - Fri, Jun 20
United Airlines Logo
5:13 pm - 3:04 pmSEA-YXU
18h 51m3 stops
United Airlines Logo
6:15 am - 10:45 amYXU-SEA
7h 30m1 stop
$323United Airlines
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Tue, May 13 - Thu, May 15
United Airlines Logo
5:26 pm - 2:58 pmSEA-YXU
18h 32m2 stops
United Airlines Logo
6:15 am - 4:20 pmYXU-SEA
13h 05m2 stops
$333United Airlines
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Fri, Jun 13 - Fri, Jun 20
United Airlines Logo
5:14 pm - 3:03 pmSEA-YXU
18h 49m3 stops
United Airlines Logo
9:55 am - 6:53 pmYXU-SEA
11h 58m2 stops
$338United Airlines
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Wed, May 28 - Wed, Jun 4
United Airlines Logo
1:49 pm - 9:18 amSEA-YXU
16h 29m2 stops
United Airlines Logo
6:15 am - 10:51 amYXU-SEA
7h 36m1 stop
$341United Airlines
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Wed, May 28 - Wed, Jun 4
United Airlines Logo
11:00 am - 2:58 pmEWR-YXU
3h 58m1 stop
United Airlines Logo
3:35 pm - 9:48 pmYXU-EWR
6h 13m1 stop
$557United Airlines
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Thu, Jun 5 - Sun, Jun 8
United Airlines Logo
4:45 pm - 9:28 pmLGA-YXU
4h 43m1 stop
United Airlines Logo
3:35 pm - 7:58 pmYXU-LGA
4h 23m1 stop
$557United Airlines
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Sat, Jun 14 - Sat, Jun 21
United Airlines Logo
7:00 am - 2:58 pmEWR-YXU
7h 58m2 stops
United Airlines Logo
6:15 am - 12:23 pmYXU-EWR
6h 08m1 stop
$567United Airlines
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Thu, Jun 5 - Sun, Jun 8
United Airlines Logo
7:00 am - 9:28 pmLGA-YXU
14h 28m2 stops
United Airlines Logo
6:15 am - 10:51 amYXU-LGA
4h 36m1 stop
$567United Airlines
Find Deal
Thu, Jun 5 - Sun, Jun 8
Useful Info

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$259
Average price round-trip$334
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Newark Liberty Airport to London
(price for this month)

When to book flights with United Airlines to London

Average price per month
Flight prices as travel date approaches

FAQs for flying to London with United Airlines

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

    You’ll fly into London when flying to London with United Airlines.

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

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

United Airlines customer reviews

7.4
GoodBased on 8,696 verified guest reviews
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding

Pros +
Cons -

Show reviews that mention
Traveler rating:
Sort by:
A
8.0 Very good
Everything
D
10.0 Wonderful
No issues, great flight, great crew
V
10.0 Wonderful
Friendly crew, all very smooth
V
8.0 Very good
Crew friendly and efficient. Nobody seated next to me
B
2.0 Poor
Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy
A
10.0 Wonderful
Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍
A
8.0 Very good
A bit rush for transit. Food and entertainment are not available
A
8.0 Very good
So far so good but food and entertainment are not available for this flight
D
10.0 Wonderful
Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.
L
8.0 Very good
Good

Everything you need to know for your flight to London

Other airlines flying to London

Flight deals from the most popular airlines with KAYAK users flying the route

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