Finnair flights from London to Phoenix Sky Harbor Intl Airport (LON - PHX)

LON — PHX
3 May — 10 May1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from London to Phoenix on Finnair typically fly into Phoenix Sky Harbor Intl and depart from London Heathrow. Select your dates above for pricing.

Finnair flights from London to Sky Harbor Intl in 2026

Find detailed information about Finnair flights from London to Sky Harbor Intl. Explore the options provided by Finnair to plan your journey from London to Sky Harbor Intl. Data last updated 3 April 2026.

One-way from

£513

Return from

£675

Popular in

December

Cheapest in

September

Average price (all airlines)

£677
Finnair
  • Finnair
  • 27/9
  • 2 total stops
  • 29h 31m total
  • London to Phoenix
Finnair
  • Finnair
  • 1/5-6/5
  • Nonstop
  • 21h 20m total
  • London to Phoenix
Highest demand for flights from London to Phoenix Sky Harbor Intl; 3% potential price increase.
Best time to find cheap flights from London to Phoenix Sky Harbor Intl; 2% potential price drop.
Average price for all London to Phoenix Sky Harbor Intl flights (one-way and round-trip).
  • How do most travelers feel about Finnair?

    The average rating from 1,376 Finnair reviews by Cheapflights users is 7.7 (out of a maximum rating of 10). If you are considering flying LON-PHX with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Phoenix Sky Harbor Intl Airport with Finnair.

  • Can I get a flight from London to Phoenix Sky Harbor Intl Airport on Finnair for under £680?

    8 Finnair flights from LON to PHX have recently been found on Cheapflights for under £680. Click here to find the best deals to Phoenix Sky Harbor Intl Airport for your desired dates.

Find Finnair flight deals from London to Sky Harbor Intl

Enter your travel dates to find the best prices.

Cheapest Finnair flights from London to Sky Harbor Intl
Explore the most affordable Finnair flight options available from London to Sky Harbor Intl. Find the lowest fares with prices last updated on 3 April 2026.

Fri 1/510:05
LHR
-
PHX
Nonstop11h 00m
Finnair
Wed 6/516:30
PHX
-
LHR
Nonstop10h 20m
Finnair
Deal found 1/4£675
Wed 22/410:05
LHR
-
PHX
Nonstop11h 00m
Finnair
Wed 6/516:30
PHX
-
LHR
Nonstop10h 20m
Finnair
Deal found 1/4£705
Thu 7/510:05
LHR
-
PHX
Nonstop11h 00m
Finnair
Mon 11/516:30
PHX
-
LHR
Nonstop10h 20m
Finnair
Deal found 3/4£706

How far ahead should I book a flight from London to Phoenix Sky Harbor Intl Airport with Finnair?

Use this chart to determine the optimal time to book a return flight from London to Sky Harbor Intl. Price data was last updated on 27 March 2026.

Booking with Finnair 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Phoenix Sky Harbor Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London to Phoenix Sky Harbor Intl Airport with Finnair?

Currently, the most affordable month to book a Finnair flight from London to Phoenix Sky Harbor Intl Airport in February, with an average price of £469. Conversely, traveling with Finnair from London to Phoenix Sky Harbor Intl Airport in August will be the most expensive, with an average cost of £787. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Weekly Finnair flight availability from London to Phoenix Sky Harbor Intl Airport

The most Finnair flights from LON to PHX are scheduled on a Monday (2 on average). You will have fewer Finnair flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix Sky Harbor Intl Airport ranges from 0.0 - 28.0 inches per month. July is typically the wettest month, when rainfall can reach 28.0 mm. June is typically the driest time to visit Phoenix Sky Harbor Intl Airport when rainfall is around 0.0 mm.

Temperature in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix Sky Harbor Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 35.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 13.0 C).

Best time to book a flight from London to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from London 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.

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Fly from London to Sky Harbor Intl on another airline

Consider alternative airlines that service the Sky Harbor Intl area. Flight routes are based on user searches made on Cheapflights and were last updated on 3 April 2026.

See what others are saying about Finnair

Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 3 April 2026.
Finnair
7.7
Good
1,376 reviews
Overview

Food

6.7

Crew

8.2

Entertainment

6.9

Comfort

7.5

Boarding

7.7

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