United Airlines Flights: Search & Compare Deals

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Return United Airlines flight deals

Compare return international and domestic flight deals from United Airlines recently found by momondo users

International

United Airlines

16 Dec

LHR07:30London Heathrow

12h 05m

1 stop

IAD14:35Washington, D.C. Dulles Intl

29 Dec

IAD15:30Washington, D.C. Dulles Intl

11h 25m

1 stop

LHR07:55London Heathrow

£428

United Airlines

10 Nov

LHR09:00London Heathrow

15h 35m

1 stop

LAX16:35Los Angeles Los Angeles

24 Nov

LAX08:30Los Angeles Los Angeles

14h 40m

1 stop

LHR07:10London Heathrow

£428

United Airlines

31 Aug

LHR08:40London Heathrow

13h 05m

1 stop

IAD16:45Washington, D.C. Dulles Intl

26 Sept

IAD15:45Washington, D.C. Dulles Intl

9h 45m

1 stop

LHR06:30London Heathrow

£429

United Airlines

29 Oct

LHR09:30London Heathrow

11h 25m

1 stop

IAD16:55Washington, D.C. Dulles Intl

5 Nov

IAD13:19Washington, D.C. Dulles Intl

15h 01m

1 stop

LHR09:20London Heathrow

£430

United Airlines

27 Oct

LHR09:00London Heathrow

15h 35m

1 stop

LAX17:35Los Angeles Los Angeles

12 Nov

LAX07:15Los Angeles Los Angeles

20h 35m

1 stop

LHR11:50London Heathrow

£430

United Airlines

7 Sept

LHR06:50London Heathrow

22h 09m

2 stops

EWR23:59Newark

14 Sept

EWR06:00Newark

23h 40m

1 stop

LHR10:40London Heathrow

£438

One-way United Airlines flight deals

Find and compare United Airlines flight prices for one-way international and domestic flights

International

United Airlines

12 Oct

GLA14:00Glasgow Intl

7h 40m

EWR16:40Newark

£307

United Airlines

8 Jan

EDI09:25Edinburgh Turnhouse

7h 55m

EWR12:20Newark

£332

United Airlines

7 Oct

LHR06:55London Heathrow

18h 54m

2 stops

LAX17:49Los Angeles Los Angeles

£344

United Airlines

30 Sept

LHR07:30London Heathrow

23h 46m

2 stops

LAX23:16Los Angeles Los Angeles

£344

United Airlines

28 Sept

LHR18:00London Heathrow

8h 20m

EWR21:20Newark

£361

United Airlines

30 Sept

LHR13:00London Heathrow

11h 05m

SFO16:05San Francisco

£361

Quick facts about United Airlines

Find info about flight duration, flight prices, and popular routes for United Airlines

Cheapest Route	£44
Most Popular Route	SFO to LAX
Shortest flight	0h 48m
Longest Flight	4h 02m

The cheapest route United Airlines flies is from San Francisco to Santa Barbara for £44

Flying from San Francisco to Los Angeles Los Angeles is currently the most popular United Airlines route

The quickest United Airlines flight route is 0h 48m from Houston (IAH) to Victoria (VCT)

The longest United Airlines flight route is 4h 02m from Los Angeles (LAX) to Vancouver (YVR)

Search flight deals

Information about flying with United Airlines

Does United Airlines have flights from London Heathrow?

Yes, United Airlines currently has 616 flights out of London Heathrow per week.

Where does United Airlines fly to?

United Airlines flies 1,654 different routes (665 international and 989 domestic) on a yearly basis. You can find United Airlines flights to 75 different countries. Based on our data, London is the most popular domestic destination and flying to Newark is the most popular international destination.

What are the top airports United Airlines serves?

San Francisco, Denver Intl, and Los Angeles Los Angeles are the most popular airports United Airlines uses on a routine basis throughout the year.

How do I check the flight status for United Airlines?

To check the flight status of United Airlines, you can give them a call at 0845 607 6760 or visit their website at united.com. Or, you can use our on-page Flight Tracker that provides you with real-time United Airlines flight information, including terminal and gate number, arrival and departure times, and flight status.

What is the cheapest domestic United Airlines flight?

The cheapest domestic return United Airlines flight is from San Francisco to Reno. This route is £86 per ticket and has 0 stops. Flying from San Francisco to Santa Barbara is the cheapest one-way domestic flight with United Airlines. This flight costs £44 per ticket and has 0 stops.

What are the bag size limits for United Airlines?

Flying with United Airlines does have some restrictions when it comes to baggage dimensions. If you choose to bring one, your checked bag should be 62in or smaller. Carry-on luggage must be 22x13x8in or smaller, and a personal item should be within 16x9x8in.

United Airlines Reviews

7.4

Good10,000 verified ratings

7.7Boarding

7.1Entertainment

6.7Food

8.1Crew

7.3Comfort

8.0 Very Good

Skinner, Aug 2026

The whole staff was very very accommodating and helpful. I have a broken foot right now and they helped me out the whole way to Tampa Bay. Leg room is always an issue but the staff was amazing

4.0 Mediocre

Jonathan, Jul 2026

Please bring back hot meals on long flights. Or at least something besides crackers and other starchy stuff. Maybe fresh fruit. I would be willing to pay higher fares for this. Also, whatever happened to wide body jets on transcon or Hawaii flights. A five hour flight on a single aisle plane is not comfortable.

6.0 Okay

Mendy, Jul 2026

Old airplane, crew forgot to bring me my kosher meal, and I had to ask for it twice, and wait until everyone finished receiving their meal, drink, and garbage collection, and then they brought me mine.

6.0 Okay

Gabriel, Jun 2026

Was ok but not perfect

10.0 Wonderful

Anonymous, Jun 2026

Smooth