Q: What is the typical price of a round-trip flight between Dallas and London Heathrow Airport?

Prices are currently low for flights on this route. Typical prices usually range from £529 to £702. The lowest price recently found on this route was £500.

Question 1

How far in advance should I book a flight to London Heathrow Airport?

Accepted Answer

You are more likely to see cheaper flights to London Heathrow Airport from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £691 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Dallas for as low as £619 on momondo.

Question 2

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

Accepted Answer

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Dallas to London Heathrow Airport in the afternoon for as low as £663. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £680 on average. Flights to London Heathrow Airport from Dallas in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

Question 3

What cabin class options are available on Dallas to London Heathrow flights?

Accepted Answer

There are 3 cabin classes available to choose from on Dallas to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 4

Which airline has the best punctuality record on Dallas to London flights?

Accepted Answer

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

Question 5

How many flights depart from Dallas to London Heathrow Airport on average per week?

Accepted Answer

As of January 2026, 196 flights take off from Dallas and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Question 6

What is the typical price of a round-trip flight between Dallas and London Heathrow Airport?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £529 to £702.
The lowest price recently found on this route was £500.

Question 7

What is the cheapest Dallas to London Heathrow flight route?

Accepted Answer

Fly from Dallas/Fort Worth to London Heathrow for the best Dallas - London Heathrow flight prices

Question 8

How often are flights from Dallas to London delayed?

Accepted Answer

Historically, on average around 21% of flights between Dallas and London have experienced a delay on any given week. The average delay length over the past 12 months has been 162 minutes.

Question 9

Which airlines fly to London Heathrow Airport?

Accepted Answer

British Airways, Iberia and Finnair are the top three most popular airlines that fly to London Heathrow Airport from Dallas according to our data. British Airways is the first choice among our users, with 52% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 5 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Question 10

What is the cheapest month to fly to London Heathrow Airport?

Accepted Answer

In general, September is the cheapest month to fly from Dallas to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £563. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Dallas averaging around £576.

Question 11

What is the cheapest airline that flies from Dallas to London Heathrow?

Accepted Answer

British Airways, Virgin Atlantic, and Air France are the most popular carriers operating from Dallas to London Heathrow

Question 12

What is the most punctual flight time for Dallas to London flights?

Accepted Answer

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Question 13

What is the cheapest day to depart on your flight to London Heathrow Airport?

Accepted Answer

On average, the least expensive day to fly to London Heathrow Airport from Dallas is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £604. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £771.

Question 14

How many flights depart from Dallas to London Heathrow Airport on average per day?

Accepted Answer

As of January 2026, there are 28 flights per day flying from Dallas to London Heathrow Airport. The most common time of day flights depart is 15:00, with 60% of flights taking off in the evening.

Question 15

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 16

When did momondo last update prices for flights from Dallas to London Heathrow Airport?

Accepted Answer

Prices for flights from Dallas to London Heathrow Airport are refreshed on a daily basis.

Question 17

How many operators does momondo search for flights from Dallas to London Heathrow Airport?

Accepted Answer

The number of operators available for flights from Dallas to London Heathrow Airport is 5 as of January 2026.

Question 18

How old do you have to be to fly from Dallas to London Heathrow Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dallas to London Heathrow Airport.

Question 19

What documentation or ID do you need to fly to London Heathrow Airport?

Accepted Answer

The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Fastest flight time	9h 00m
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Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £454	Free Cancellation	Rating 6.7 7,657 reviews	Search British Airways flights
Finnair	PriceFrom £457	Free Cancellation	Rating 7.6 1,345 reviews	Search Finnair flights
American Airlines	PriceFrom £472	Free Cancellation	Rating 7.2 11,083 reviews	Search American Airlines flights
Air Canada	PriceFrom £495	Free Cancellation	Rating 7.1 10,598 reviews	Search Air Canada flights
Iberia	PriceFrom £536	Free Cancellation	Rating 7.0 3,074 reviews	Search Iberia flights

Cheap flights from Dallas to London from £186

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dallas to London departing on 28/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Dallas to London Heathrow Airport

What is the typical price of a round-trip flight between Dallas and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

What is the cheapest day to depart on your flight to London Heathrow Airport?

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

What is the cheapest Dallas to London Heathrow flight route?

Fly from Dallas/Fort Worth to London Heathrow for the best Dallas - London Heathrow flight prices

How far in advance should I book a flight to London Heathrow Airport?

What cabin class options are available on Dallas to London Heathrow flights?

There are 3 cabin classes available to choose from on Dallas to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Dallas to London Heathrow?

British Airways, Virgin Atlantic, and Air France are the most popular carriers operating from Dallas to London Heathrow

Which airlines fly to London Heathrow Airport?

How often are flights from Dallas to London delayed?

Historically, on average around 21% of flights between Dallas and London have experienced a delay on any given week. The average delay length over the past 12 months has been 162 minutes.

What is the most punctual flight time for Dallas to London flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Dallas to London flights?

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

How many flights depart from Dallas to London Heathrow Airport on average per day?

As of January 2026, there are 28 flights per day flying from Dallas to London Heathrow Airport. The most common time of day flights depart is 15:00, with 60% of flights taking off in the evening.

How many flights depart from Dallas to London Heathrow Airport on average per week?

As of January 2026, 196 flights take off from Dallas and land in London Heathrow Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

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When did momondo last update prices for flights from Dallas to London Heathrow Airport?

How many operators does momondo search for flights from Dallas to London Heathrow Airport?

How old do you have to be to fly from Dallas to London Heathrow Airport?

What documentation or ID do you need to fly to London Heathrow Airport?

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