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Cheap flights from Tucson to London Heathrow Airport from £252

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — LHR
19 Jul — 26 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Tucson to Heathrow

Enter your travel dates to find the best prices.

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 19 June 2026.

Wed 7/1013:15
TUS
-
LHR
1 stop17h 10m
Iberia
Wed 21/1011:30
LHR
-
TUS
2 stops19h 35m
Iberia
Deal found 16/6£661
Wed 30/906:06
TUS
-
LHR
1 stop17h 39m
United Airlines
Fri 9/1007:25
LHR
-
TUS
2 stops17h 21m
United Airlines
Deal found 19/6£664
Wed 28/1007:00
TUS
-
LHR
2 stops17h 50m
Delta
Wed 4/1108:40
LHR
-
TUS
2 stops21h 16m
Delta
Deal found 19/6£667
Tue 6/1007:01
TUS
-
LHR
2 stops22h 19m
Air Canada
Tue 20/1015:05
LHR
-
TUS
2 stops37h 20m
Air Canada
Deal found 16/6£669
Wed 4/1112:33
TUS
-
LHR
2 stops18h 12m
Iberia
Mon 9/1119:05
LHR
-
TUS
2 stops21h 34m
Iberia
Deal found 19/6£671
Wed 28/1007:22
TUS
-
LHR
1 stop21h 58m
Alaska Airlines
Wed 4/1114:45
LHR
-
TUS
1 stop15h 03m
Alaska Airlines
Deal found 16/6£672
Wed 28/1015:54
TUS
-
LHR
1 stop13h 21m
British Airways
Wed 4/1106:15
LHR
-
TUS
2 stops24h 41m
British Airways
Deal found 16/6£676
Tue 6/1007:22
TUS
-
LHR
1 stop23h 43m
Alaska Airlines
Tue 20/1017:00
LHR
-
TUS
1 stop29h 56m
Alaska Airlines
Deal found 16/6£677
Wed 30/913:18
TUS
-
LHR
1 stop13h 37m
British Airways
Fri 9/1011:00
LHR
-
TUS
1 stop20h 05m
British Airways
Deal found 19/6£679

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 19 June 2026.

Round-trip from

£661

One-way from

£252

Popular in

June

Cheapest in

January

Average price

£1,091
Iberia
  • Iberia
  • 4/11-9/11
  • 3 total stops
  • 34h 20m total
  • Tucson to London
Search Deals
British Airways
  • British Airways
  • 23/9
  • 1 total stop
  • 16h 04m total
  • Tucson to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£173 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£26 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 19 June 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 return flight

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Tue 6/10

07:22-15:05

1 stop23h 43m

London Heathrow

Wed 21/10

17:00-14:56

1 stop29h 56m

£677

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Tue 6/10

07:22-15:05

1 stop23h 43m

London Heathrow

Tue 20/10

17:00-14:56

1 stop29h 56m

£677

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Mon 26/10

10:50-07:30

1 stop13h 40m

London Heathrow

Sun 8/11

13:00-22:40

2 stops40h 40m

£709

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Fri 30/10

10:50-07:30

1 stop13h 40m

London Heathrow

Fri 6/11

13:00-22:40

2 stops40h 40m

£709

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Thu 8/10

15:52-15:05

1 stop15h 13m

London Heathrow

Wed 21/10

17:00-14:56

1 stop29h 56m

£715

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Wed 2/12

08:10-12:20

1 stop21h 10m

London Heathrow

Sun 13/12

14:45-12:11

1 stop28h 26m

£715

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Thu 8/10

15:52-15:05

1 stop15h 13m

London Heathrow

Thu 22/10

17:00-14:56

1 stop29h 56m

£715
Fastest return journey

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Mon 3/8

18:33-15:05

1 stop12h 32m

London Heathrow

Wed 19/8

12:55-21:26

1 stop16h 31m

£724

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Fri 21/8

11:54-15:35

1 stop19h 41m

London Heathrow

Fri 4/9

06:30-15:51

2 stops17h 21m

£740

TucsonLondon

TUS - LHR

TUSLHR

Tucson

Mon 26/10

12:40-16:25

3 stops20h 45m

London Heathrow

Sun 8/11

06:40-22:07

2 stops22h 27m

£766

Flights are sorted by cheapest return flights first.

Deals found on 18/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 return 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

How far ahead should I book a flight from Tucson to London Heathrow Airport?

The best time to book flights from Tucson to London Heathrow Airport is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 £498). Flying from Tucson to London Heathrow Airport in June is currently the most expensive (average of £1,091). 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 for a return flight from Tucson to London Heathrow Airport?

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?

    Most people fly from Tucson (TUS) if they book a flight from Tucson to London Heathrow. On average, Tucson has 0 outbound flights to London Heathrow per day from 0 airlines. Tucson is conveniently located just 7.5 mi from Tucson’s city center.

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

    There are many flights that can get you from Tucson to London Heathrow Airport in 19h 46m. Fly via Alaska Airlines or Delta to get the fastest option. Airlines will cover a distance of 5291 mi. This flight may include one or multiple stops.

  • 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 holiday 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 £498). Flying from Tucson to London Heathrow Airport in June is currently the most expensive (average of £1,091). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Wembley
Luton
Gatwick
Croydon
Slough
Ilford
Hayes
Brentford
Colchester
Northampton
Kingston upon Thames
Swindon
Eastbourne
Watford
Poole
Guildford
Romford
Ipswich

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How does Cheapflights help users find flights from Tucson to Heathrow?

When you search for this flight from Tucson to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Tucson to Heathrow?

Cheapflights helps you find that perfect flight to Heathrow from Tucson by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Tucson to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Tucson to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Tucson to Heathrow become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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