For a stress-free departure, arrive 20-30 minutes early during busy hours (6-8 a.m., 3-7 p.m.) on weekdays.

Most accurate provider | Gotogate 3 stars |
|---|---|
Most trusted provider | Gotogate 3 stars |
Round-trip from | $516 (FlightHub) |
One-way from | $264 (Thrive Travel) |
Popular in | June |
Cheapest in | January |
Average price | $641 |
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Mon 4/13
8:30 pm-11:55 am
1 stop10h 25m
London Heathrow
Thu 6/18
1:05 pm-7:25 pm
1 stop11h 20m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Tue 3/17
9:35 pm-8:40 am
Nonstop7h 05m
London Heathrow
Tue 3/24
3:25 pm-7:45 pm
Nonstop8h 20m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Tue 1/20
9:17 am-9:15 am
1 stop18h 58m
London Heathrow
Tue 1/27
3:25 pm-6:45 pm
Nonstop8h 20m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Tue 3/17
8:09 am-6:20 am
2 stops18h 11m
London Heathrow
Tue 3/24
7:25 am-2:06 pm
1 stop34h 41m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Wed 2/18
4:45 pm-11:40 am
1 stop13h 55m
London Heathrow
Tue 2/24
11:30 am-10:53 pm
2 stops16h 23m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Mon 3/2
3:39 pm-6:50 am
1 stop10h 11m
London Heathrow
Tue 3/10
11:30 am-12:53 am
2 stops17h 23m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Tue 3/17
11:52 am-6:25 am
1 stop14h 33m
London Heathrow
Tue 3/24
11:30 am-12:53 am
2 stops17h 23m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Wed 1/21
6:59 pm-11:40 am
1 stop11h 41m
London Heathrow
Wed 1/28
6:30 am-5:46 pm
2 stops16h 16m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Sun 2/1
1:02 pm-8:05 am
2 stops14h 03m
London Heathrow
Tue 2/10
11:30 am-11:05 pm
2 stops16h 35m
BaltimoreLondon
BWI - LHR
BWILHR
Baltimore/Washington
Wed 4/15
6:05 am-6:45 am
1 stop19h 40m
London Heathrow
Mon 4/27
12:10 pm-9:23 pm
2 stops38h 13m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
The best time to book flights from Baltimore to London Heathrow Airport is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, March is the cheapest month in which you can book a flight from Baltimore to London Heathrow Airport (average of $31). Flying from Baltimore to London Heathrow Airport in June is currently the most expensive (average of $711). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to London Heathrow Airport as you normally would.
Reykjavik (KEF) – chosen by Cheapflights users on 88% of 1-stop itineraries from Baltimore to London Heathrow Airport on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $511.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 39m.
Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 25m.
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Entertainment
Food
Comfort
Crew
Overall
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$477 | Average$601 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$506 | Average$913 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$520 | Average$615 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$520 | Average$793 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$580 | Average$769 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$599 | Average$754 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$609 | Average$870 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$815 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$636 | Average$836 | FlexibilityNo cancel fee | On-time71% |