$558 Cheap Finnair flights from Dallas to London (DFW to LHR)

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

If you’re flying with Finnair from DFW Airport, you’ll usually catch your flight from terminal D. If you’re heading to Heathrow Airport from here, you’re likely to be pulling in at terminal 3.

There aren’t any nonstop flights with Finnair from DFW to London Heathrow. You will have at least one stopover, so use the time to wander around and stretch those legs before your connecting flight.

If weather conditions are good and there are no delays, your Finnair flight will take you from DFW to LHR in an average of 10 hours and 45 minutes. As it’s a lengthy flight, take the advice of other experienced travelers and get a decent night’s sleep before you take off. Drinking water regularly while you’re airborne is another great travel tip worth taking on board.

When you zip through the clouds between DFW and LHR with Finnair, you’ll usually be doing it aboard the Boeing 777-300ER. The carrier also operates the Airbus A380-800 on this flight path.

You’ll find approximately 2 Finnair flights every day from DFW to LHR.

For more info about changing your flight to Heathrow Airport (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.