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Heathrow

$427+ Cheap flights from Tucson (TUS) to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — LHR
Jul 21 — Jul 281
Tue 7/21
Tue 7/28
1 adult, Economy
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Cheap flight deals from Tucson to Heathrow

Cheapest flights from Tucson to Heathrow
Explore the most affordable flight options available from Tucson to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 21, 2026.

This Orbitz deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/71:15 pm
TUS
-
LHR
1 stop17h 10m
Iberia
Wed 10/2111:30 am
LHR
-
TUS
2 stops19h 35m
Iberia
Deal found 6/16$874
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:00 am
TUS
-
LHR
1 stop20h 00m
Delta
Wed 11/48:40 am
LHR
-
TUS
2 stops21h 16m
Delta
Deal found 6/20$876
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:06 am
TUS
-
LHR
1 stop17h 39m
United Airlines
Fri 10/97:25 am
LHR
-
TUS
2 stops17h 21m
United Airlines
Deal found 6/20$877
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:56 pm
TUS
-
LHR
1 stop15h 19m
United Airlines
Wed 11/46:50 am
LHR
-
TUS
2 stops23h 16m
United Airlines
Deal found 6/19$878
This Air Canada deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:01 am
TUS
-
LHR
2 stops22h 19m
Air Canada
Tue 10/203:05 pm
LHR
-
TUS
2 stops37h 20m
Air Canada
Deal found 6/16$884
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:22 am
TUS
-
LHR
1 stop21h 58m
Alaska Airlines
Wed 11/42:45 pm
LHR
-
TUS
1 stop15h 03m
Alaska Airlines
Deal found 6/20$887
This FlightHub deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:54 pm
TUS
-
LHR
1 stop12h 56m
British Airways
Tue 10/207:50 am
LHR
-
TUS
2 stops23h 15m
British Airways
Deal found 6/16$894

Find flight deals from Tucson to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Tucson (TUS) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 21, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$927
(Cheapflightsfares)

One-way from

$427
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,442
Provider with most accurate pricing for Tucson-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Tucson-London Heathrow flights.
Search Deals
From Tucson to London Heathrow
Search Deals
One-way flight from Tucson to London Heathrow
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($310 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Tucson to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
Use the filters below to find and compare flights from Tucson to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Wed 8/12

7:12 am-10:00 am

1 stop18h 48m

London Heathrow

Fri 8/28

6:30 am-4:07 pm

2 stops17h 37m

$936

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Fri 8/21

5:30 am-12:25 pm

1 stop22h 55m

London Heathrow

Fri 9/4

6:55 am-5:03 pm

2 stops18h 08m

$981

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Sat 7/18

3:28 pm-7:25 am

1 stop31h 57m

London Heathrow

Tue 8/18

1:40 pm-9:14 pm

1 stop15h 34m

$1,037

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Wed 7/22

12:30 pm-5:35 pm

1 stop21h 05m

London Heathrow

Wed 7/29

1:25 pm-9:49 pm

1 stop16h 24m

$1,065

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Wed 7/22

6:37 am-7:45 am

1 stop17h 08m

London Heathrow

Wed 7/29

9:30 am-8:12 pm

2 stops18h 42m

$1,069

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Wed 7/15

5:45 am-12:35 pm

1 stop22h 50m

London Heathrow

Fri 8/14

2:50 pm-8:30 pm

1 stop13h 40m

$1,095

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Wed 7/15

1:30 pm-9:40 am

1 stop12h 10m

London Heathrow

Wed 8/12

11:25 am-8:30 pm

1 stop17h 05m

$1,095

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Wed 8/12

12:33 pm-9:35 pm

3 stops25h 02m

London Heathrow

Fri 8/28

7:05 am-8:56 pm

3 stops21h 51m

$1,110

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Mon 8/3

7:20 am-6:45 am

1 stop15h 25m

London Heathrow

Mon 8/10

1:40 pm-8:42 pm

1 stop15h 02m

$1,135
Quickest round-trip

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Thu 7/16

1:30 pm-9:40 am

1 stop12h 10m

London Heathrow

Thu 8/13

11:25 am-5:03 pm

1 stop13h 38m

$1,155

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/20

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Tucson to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Tucson to Heathrow in June.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Tucson-London Heathrow Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Tucson-London Heathrow Airport flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Tucson-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Tucson-London Heathrow Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Tucson-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Tucson to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Tucson with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Tucson to London Heathrow Airport

What is the cheapest month to book a flight from Tucson to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Tucson to London Heathrow Airport (average of $658). Flying from Tucson to London Heathrow Airport in June is currently the most expensive (average of $1,442). 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.

How much does it cost to fly round-trip from Tucson to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated June 21, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andBritish Airways from Tucson to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,870 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,870 reviews
United Airlines
7.4
Good
9,870 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,728 reviews
United Airlines
7.4
Good
9,870 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
British Airways
6.7
Okay
8,064 reviews
United Airlines
7.4
Good
9,870 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Tucson to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Tucson to London Heathrow?

    If you book a flight to London Heathrow from Tucson, you will be flying from Tucson, which is the city’s only airport. Tucson (TUS) is located 7.5 mi from the center of Tucson. There are 0 flights from Tucson to London Heathrow per day from 3 different airlines.

  • How long is the flight from Tucson to London Heathrow Airport?

    Departing from Tucson to London Heathrow Airport will take you 18h 48m. Airlines will cover a distance of 5291 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Tucson to London Heathrow Airport round-trip?

    Our cheapest airline available from Tucson to London Heathrow Airport is British Airways. Our recent data shows that you can find tickets from as low as $624 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $658 and $698 round-trip. These flights start at 35% lower than the current average price 3 months from now.

  • Can I find deals for flights from Tucson to Heathrow that include hotel bookings?

    Yes. In addition to deals on Tucson to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Tucson to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Tucson to Heathrow.

  • Can I find deals for business class flights from Tucson to Heathrow?

    Yes. Cheapflights offers flight deals from Tucson to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Tucson to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Tucson to London Heathrow Airport (average of $658). Flying from Tucson to London Heathrow Airport in June is currently the most expensive (average of $1,442). 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.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Tucson to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to Heathrow flights
Las Vegas to Heathrow flights
Las Vegas to Gatwick flights
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Las Vegas to Luton flights

Top 3 airlines flying from Tucson to Heathrow

Discover the top 3 airlines that operate flights from Tucson to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$624Average$927FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$658Average$1,245FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$698Average$1,116FlexibilityNo cancel feeOn-time71%

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