Cheap Delta flights from Phoenix to London (PHX to LHR)

For any current Heathrow Airport quarantine requirements and travel advice, visit the Covid-19 Travel Advisor. Check before you book your flight, so you don’t get caught up.

Before you fly from Sky Harbor Intl. Airport (PHX) to Heathrow Airport with Delta Air Lines, it might be a good idea to contact the airline for your terminal information. While your ticket should have some of the details, we can’t guarantee it.

Delta Air Lines doesn’t provide direct flights between Sky Harbor Intl. Airport (PHX) and London Heathrow, so plan to make at least one stopover. If you have time to spare between flights, enjoy a coffee while you wait for your connection.

If weather conditions are favorable and things are running smoothly, your Delta Air Lines flight should take you from PHX to LHR in roughly 11 hours and 46 minutes. As it’s a long flight, heed the advice of other wise wanderers and get a decent night’s sleep before you head off. Staying hydrated while you’re in the air is another great travel tip to take on board.

When flying from PHX to LHR, you’ll find approximately 3 Delta Air Lines daily flights to select from.

For more info about changing your flight to LHR, please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.