Flights from Washington Dc to London
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From $513 · Prices update daily
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The quick answer
Flights from Washington Dc to London start around $513 round-trip. Airlines on this route include: Icelandair, SAS Scandinavian. Cheapest month: November; peak: September (about +7%). Travel authorization required (ESTA-style) (United Kingdom).
Price calendar — next 60 days
★ Cheapest: $513 on Tue, Nov 10 · FI
Lowest return fares · Prices update daily · Final price confirmed at booking
Price calendar — Washington Dc to London
Month-by-month lowest fares. Green = cheapest dates.
Flying to London? Compare from other US cities
Sometimes a nearby airport is cheaper. See London fares from other departure cities.
United Kingdom essentials
🟡 Travel authorization required (ESTA-style) · up to 6 months
An ETA (Electronic Travel Authorisation) is required before travel for US citizens.
Full London visa guide →🆘 Emergency
999 / 112
💱 Currency
Pound Sterling (£)
🕐 Time zone
UTC+0
🗣️ Language
English
🔌 Plugs
Type G · 230V
🚗 Driving
Left side
💡 Tipping
10–12.5%, check if included
📞 Dial code
+44
🏛️ US Embassy
London · +44 20-7499-9000
Entry rules can change — always confirm with official sources before booking.
Stay connected in London
Skip roaming fees — get a local eSIM before you land. Works in 200+ countries and activates instantly, so you’re online the moment you touch down.
Travel insurance
Protect your Washington Dc to London trip against delays, cancellations, and medical emergencies. US travelers can compare plans from top insurers.
Airport transfer in London
Pre-book your ride into London. Fixed price, meet & greet, and a driver waiting at arrivals — no meter anxiety after a long flight.
Flight delayed or cancelled?
If your Washington Dc to London flight was delayed more than 3 hours or cancelled, you may be entitled to up to €600 in compensation under EU/UK rules — even if you flew a non-EU airline. Free to check, no win no fee.
More resources
Washington Dc to London — frequently asked
How much is a flight from Washington Dc to London?+
Fares start around $513 round-trip, ranging up to about $571 in peak periods. Prices update daily across 800+ airlines.
What is the cheapest month to fly Washington Dc to London?+
November typically has the lowest fares, while September is the most expensive (around +7%).
Are there direct flights from Washington Dc to London?+
This route is usually served by connecting flights. Use the search above to check for any direct options on your dates.
Which airlines fly from Washington Dc to London?+
Carriers on this route include Icelandair, SAS Scandinavian. Compare them side by side in the search above.
Do US citizens need a visa for United Kingdom?+
Travel authorization required (ESTA-style) for stays up to 6 months. An ETA (Electronic Travel Authorisation) is required before travel for US citizens.
What currency is used in United Kingdom?+
The Pound Sterling (GBP, £). The emergency number is 999 / 112.
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