Cheap flights from Baltimore to London from $434 BWI → LGW, LHR, LTN, STN
Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), Stansted Airport (STN)
The cheapest return found recently is $754 with Icelandair, 3 Dec – 13 Dec, found 2 days ago. The cheapest one-way found recently is $434 with Icelandair, 1 Jul 2027, found 3 days ago.
- Cheapest one-way found recently
- $434, found 3 days ago
- Cheapest return found recently
- $754, 3 Dec to 13 Dec
- Usual return price
- $794 to $963
- Cheapest month to fly
- November 2026, return fares from $726 found in the last 7 days
- Airlines with nonstop flights
- British Airways, American Airlines, Iberia
Return
The cheapest return fare on each of 6 departure dates is usually $794 to $963.
Cheapest return found recently
$754
3 Dec – 13 Dec · Icelandair
Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR)
Leaves 7:40 p.m. · Return leaves 8:35 p.m. · 45 h 45 min of travel, both ways together
out 1 stop, back 1 stop · via Keflavik International Airport (KEF) · overnight connection · 17 h connection
found 2 days ago
Cheapest nonstop return
$1,096
3 Dec – 13 Dec · British Airways
Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR)
Leaves 6:55 p.m. · Return leaves 10:05 p.m. · 15 h 25 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$754 3 Dec – 13 Decfound 2 days agoSee prices for these dates
$726 16 Nov – 26 Novfound 5 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $395 to $846.
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 6 departure dates from 16 Nov to 22 Oct 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 10-night return fares leaving within 3 days of 3 Dec to compare.
Every date we hold
64 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 16 Nov – 26 Nov | $726 | Icelandair | Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 20 Nov – 30 Nov | $1,161 | Icelandair | Baltimore/Wash International Thurgood Marshall Airport (BWI) → Stansted Airport (STN) | out 2 stops, back 2 stops | found 5 days ago | See prices for these dates |
| 3 Dec – 13 Dec | $754 | Icelandair | Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 27 Dec – 11 Jan 2027 | $969 | Icelandair | Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Gatwick Airport (LGW) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 13 Jul 2027 – 10 Aug 2027 | $915 | Icelandair | Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 22 Oct 2027 – 29 Oct 2027 | $945 | British Airways | Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR) | out nonstop, back 1 stop | found 5 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $726.
Airlines on the cheapest dates: Icelandair, British Airways.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$434
1 Jul 2027 · Icelandair
Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR)
Leaves 11:20 p.m. · 31 h 35 min trip
1 stop
found 3 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$434 1 Jul 2027found 3 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 36 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $267 to $434.
At $434, the cheapest one-way found recently is at the high end of that range.
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 1 Jul 2027 to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Jul 2027 | $434 | Icelandair | Baltimore/Wash International Thurgood Marshall Airport (BWI) → London Heathrow Airport (LHR) | 1 stop | found 3 days ago | Open this trip |
Airlines on the cheapest dates: Icelandair.
Premium cabin fares from Baltimore to London
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 3 Dec – 13 Dec in another cabin: Premium economy · Business · First
Today's prices for 1 Jul 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Baltimore to London?
Return
Fares 60 to 89 days before departure were typically 30% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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 | $1,015 | $690 | +43% | 18 |
| 7–13 days | $859 | $726 | +21% | 22 |
| 14–29 days | $942 | $395 | +33% | 24 |
| 30–59 days | $808 | $705 | +14% | 40 |
| 60–89 days | $710 | $515 | Cheapest seen | 42 |
| 90–179 days | $730 | $559 | +3% | 25 |
| 180+ days | $887 | $728 | +25% | 26 |
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (36 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 |
|---|---|---|---|---|
| 30–59 days | $267 | $267 | Cheapest seen | 8 |
| 60–89 days | $351 | $311 | +32% | 10 |
| 90–179 days | $391 | $391 | +46% | 8 |
| 180+ days | $378 | $372 | +42% | 19 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Washington → London
57 km from Baltimore
$730
$24 less than flying from Baltimore
3 Dec – 14 Dec · DCA → LHR · out 1 stop, back 3 stops
found 2 days ago
Philadelphia → London
145 km from Baltimore
$1,357
$603 more than flying from Baltimore
20 Nov – 27 Nov · PHL → LHR · out 2 stops, back 1 stop
found 2 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 3 Dec – 13 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Baltimore to London?
The cheapest return found recently is $754 with Icelandair, 3 Dec to 13 Dec, found 2 days ago. The cheapest return we hold, of any age, is $726 with Icelandair, 16 Nov to 26 Nov, found 5 days ago. The cheapest return fare on each of 6 departure dates is usually $794 to $963.
How much is a one-way flight from Baltimore to London?
The cheapest one-way found recently is $434 with Icelandair, 1 Jul 2027, found 3 days ago.
What is the cheapest month to fly from Baltimore to London?
November 2026 is the cheapest month for a return, from $726, 16 Nov to 26 Nov, found 5 days ago.
How far ahead should I book a flight from Baltimore to London?
In 49 days of prices between 24 Sept and 11 Nov, return fares 60 to 89 days before departure were typically 30% lower than 0 to 6 days before departure. In 36 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 30 to 59 days before departure.
Is there a direct flight from Baltimore to London?
Yes, the cheapest nonstop return found recently is $1,096 with British Airways, 3 Dec to 13 Dec, found 2 days ago.
How long is the flight from Baltimore to London?
The cheapest one-way found recently, with Icelandair on 1 Jul 2027, takes 31 h 35 min with 1 stop.
Which airlines have the cheapest flights from Baltimore to London?
Between 16 Nov and 22 Oct 2027, Icelandair has the cheapest return on 5 of the 6 departure dates we hold, and British Airways on 1.
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