London to Washington LCY, LGW, LHR, LTN, SEN, STN → DCA, IAD
London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD)
The cheapest return found recently is $745 with Wizz Air Malta, 7 Nov – 29 Nov, found yesterday. The cheapest one-way found recently is $407 with Icelandair, 8 Jun 2027, found 6 days ago.
Return
The cheapest return fare on each of 7 departure dates is usually $752 to $1,033.
Cheapest return found recently
$745
7 Nov – 29 Nov · Wizz Air Malta
London Luton Airport (LTN) → Washington Dulles International Airport (IAD)
Leaves 9:30 p.m. · Return leaves 4:30 p.m. · 45 h 20 min of travel, both ways together
out 2 stops, back 2 stops
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$745 7 Nov – 29 Novfound yesterdaySee prices for these dates
$464 23 Dec – 31 Decfound 4 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $463 to $934.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 7 departure dates from 27 Oct to 11 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 22-night return fares leaving within 3 days of 7 Nov to compare.
Every date we hold
14 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Oct – 27 Nov | $1,034 | Virgin Atlantic | London City Airport (LCY) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 1 Nov – 8 Nov | $1,126 | easyJet | London Southend Airport (SEN) → Washington Dulles International Airport (IAD) | out 2 stops, back 2 stops | found 4 days ago | See prices for these dates |
| 5 Nov – 21 Nov | $955 | Helvetic Airways | London City Airport (LCY) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 7 Nov – 29 Nov | $745 | Wizz Air Malta | London Luton Airport (LTN) → Washington Dulles International Airport (IAD) | out 2 stops, back 2 stops | found yesterday | See prices for these dates |
| 8 Nov – 14 Nov | $1,032 | SWISS | London City Airport (LCY) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 23 Dec – 31 Dec | $464 | Aer Lingus | London Heathrow Airport (LHR) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 11 Mar 2027 – 18 Mar 2027 | $759 | Wizz Air UK | London Luton Airport (LTN) → Washington Dulles International Airport (IAD) | out 2 stops, back 2 stops | found yesterday | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $464.
Airlines on the cheapest dates: Virgin Atlantic, easyJet, Helvetic Airways, Wizz Air Malta, SWISS, Aer Lingus, Wizz Air UK.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$407
8 Jun 2027 · Icelandair
London Gatwick Airport (LGW) → Washington Dulles International Airport (IAD)
Leaves 3:40 p.m. · 32 h 40 min trip
1 stop
found 6 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$407 8 Jun 2027found 6 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 11 days, 8 Oct to 18 Oct, the cheapest one-way we saw each day was $407 to $499.
At $407, the cheapest one-way found recently is at the low end of that range.
11 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 8 Jun 2027 to compare.
Every date we hold
6 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 8 Jun 2027 | $407 | Icelandair | London Gatwick Airport (LGW) → Washington Dulles International Airport (IAD) | 1 stop | found 6 days ago | Open this trip |
Airlines on the cheapest dates: Icelandair.
Premium cabin fares from London to Washington
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 7 Nov – 29 Nov in another cabin: Premium economy · Business · First
Today's prices for 8 Jun 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for London to Washington?
Return
Fares 90 to 179 days before departure were typically 50% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $934 | $816 | +102% | 8 |
| 7–13 days | $991 | $717 | +114% | 12 |
| 14–29 days | $469 | $469 | +1% | 12 |
| 90–179 days | $463 | $463 | Cheapest seen | 9 |
| 180+ days | $474 | $469 | +2% | 18 |
One-way
Not enough history yet: in 11 days of one-way prices, 8 Oct to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
London → Baltimore
57 km from Washington
$980
$235 more than flying to Washington
23 Dec – 31 Dec · LTN → BWI · out 1 stop, back 1 stop
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 7 Nov – 29 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work