Cheap flights from Dallas to London from £173
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 23/7. 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
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to London Heathrow Airport?
In general, January 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 £576. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Dallas averaging around £585.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from Dallas is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £621. 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 £789.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
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 £655. 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 at midday when prices are £704 on average. Flights to London Heathrow Airport from Dallas at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.
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?
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 £588 on momondo.
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.
How many flights depart from Dallas to London Heathrow Airport on average per day?
As of July 2025, there are 25 flights per day flying from Dallas to London Heathrow Airport. The most common time of day flights depart is 22:00, with 57% of flights taking off in the evening.
How many flights depart from Dallas to London Heathrow Airport on average per week?
As of July 2025, 175 flights take off from Dallas and land in London Heathrow Airport each week. The most common flight departure day for this route is Tue, with 17% of weekly flights taking off on this day.
Cheap Dallas to London Heathrow Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Dallas to London Heathrow Airport
How far is Dallas to London Heathrow by plane?
Dallas and London Heathrow are 4733.2 mi apart from one another. Flights usually cover this in 9h 00m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Dallas to London Heathrow Airport?
Prices for flights from Dallas to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Dallas to London Heathrow Airport?
The number of operators available for flights from Dallas to London Heathrow Airport is 5 as of July 2025.
How old do you have to be to fly from Dallas to London Heathrow Airport?
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.
What documentation or ID do you need to fly to London Heathrow Airport?
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.
Best airlines flying from Dallas to London Heathrow Airport
Compare and see reviews for airlines that fly from Dallas to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £445 | Free Cancellation | Rating 7.3 1,414 reviews | |||
| PriceFrom £462 | Free Cancellation | Rating 7.6 1,301 reviews | |||
| PriceFrom £484 | Free Cancellation | Rating 7.0 2,812 reviews | |||
| PriceFrom £495 | Free Cancellation | Rating 6.6 7,086 reviews | |||
| PriceFrom £535 | Free Cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from Dallas to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Dallas to London. momondo saves you time and could save you money on your trip.
Can I find flights from Dallas to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Dallas with this policy.
How can momondo help me find flights from Dallas to London?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Dallas to London.
I’m not ready to book a flight from Dallas to London right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Dallas to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.