USA

Cheap flights to Washington DC

Capital · History · Long haul. Compare cheap flights to Washington DC from UK airports — flight time 8h from London.

8h
Flight from London
from £340
Typical price
Apr–May, Sep–Oct
Best season
Price intelligence

When to fly to Washington DC for the cheapest fare

Source: Travelpayouts
updated 2026-07-27
Average return
£475
From £364 on a great day
Cheapest month
Aug
Avg £475 return
Peak month
Aug
Avg £475 return
Good-deal threshold
£437 or less
25th-percentile fare
Cheapest day to depart: Friday
Most expensive day: Thursday

Flying to Washington DC — what to know

Washington DC is a long-haul destination from the UK — around 8h in the air from London, which makes it a realistic one- to two-week trip. Travellers come for the history. Returns from around £340 are typical when booked ahead.

Most visitors aim for Apr–May, Sep–Oct. Typical advance returns sit around £340. On the ground, US dollar (USD) is the local currency and English the dominant language — English coverage is solid in tourist quarters and at the airport. Visa: ESTA required — apply online before travel, $21, valid 2 years. 8–14 weeks ahead is the long-haul sweet spot — earlier doesn't reliably help, later starts to hurt; last-minute bookings can run two to three times the advance fare.

Good to know

Booking flights to Washington DC — the answers that matter

How much is a return flight to Washington DC from the UK?

Direct answer. Return fares to Washington DC typically start around £340 when booked ahead — it's a long-haul route, roughly 8h in the air from London.

8–14 weeks ahead is the long-haul sweet spot — earlier doesn't reliably help, later starts to hurt. Last-minute bookings are where this route punishes you — waiting until inside two weeks of departure usually costs well over the advance fare.

Key fact: A typical advance return to Washington DC is around £340; flight time from London is about 8h.

When should you book flights to Washington DC?

Direct answer. Book 8–14 weeks ahead, and aim for Apr–May, Sep–Oct if you want Washington DC at its best — that window balances weather and crowds rather than chasing a mythical cheapest day.

Before you commit, the admin: ESTA required — apply online before travel, $21, valid 2 years. Currency is US dollar (USD); English is the main language, with English widely understood in tourist areas.

Key fact: Best months to visit Washington DC: Apr–May, Sep–Oct. Flight time from London: about 8h.

Plan ahead

Practical information for UK travellers

Flight time from London~8h direct
Typical priceFrom £340 return — booking 6–8 weeks ahead is generally cheapest
Best monthsApr–May, Sep–Oct
VisaESTA required — apply online before travel, $21, valid 2 years
CurrencyUS dollar (USD)
Time zoneVaries — ET (UTC-5) to PT (UTC-8)
LanguageEnglish
Things to do

Top experiences in Washington DC

Loading top experiences…
Powered by Viator · affiliate commission earned on bookings

More destinations to explore

New York, USA
New York
USA
From
£299
View →
Los Angeles, USA
Los Angeles
USA
From
£420
View →
Toronto, Canada
Toronto
Canada
From
£349
View →

Frequently asked questions

How long is the flight from the UK to Washington DC?

Direct flights from London to Washington DC take approximately 8h. Total journey time depends on your departure airport and any connections.

Do UK passport holders need a visa for USA?

ESTA required — apply online before travel, $21, valid 2 years

When is the best time to visit Washington DC?

The best months to visit Washington DC are Apr–May, Sep–Oct, when conditions are most comfortable for sightseeing and weather is settled.

What currency is used in USA?

US dollar (USD) — most major hotels and restaurants in Washington DC accept card payments, but cash is useful for smaller establishments and tipping.

What language is spoken in Washington DC?

English. English is widely understood in tourist areas, hotels, and major restaurants.