AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to London (LHR) in March 2026 (see full year).

Return flights

03 Mar - 10 Mar	Spirit Airlines
03 Mar - 11 Mar	Air Canada
02 Mar - 09 Mar	Iberia
16 Mar - 24 Mar	Air Canada
11 Mar - 17 Mar	Air Canada
09 Mar - 21 Apr	Air Canada
17 Mar - 31 Mar	Lufthansa
01 Mar - 12 Mar	Lufthansa
10 Mar - 16 Mar	Finnair
04 Mar - 11 Mar	Finnair
01 Mar - 16 Mar	Finnair
29 Mar - 14 Apr	Finnair
29 Mar - 27 Apr	Finnair
29 Mar - 13 Apr	Finnair
09 Mar - 21 Apr	Iberia	direct
04 Mar - 03 Apr	Iberia	direct
25 Mar - 14 Apr	Iberia	direct
31 Mar - 05 Apr	Spirit Airlines
29 Mar - 14 Apr	British Airways	direct
17 Mar - 04 Apr	Lufthansa

Also check the deals for one-way flights from Dallas-Fort Worth to London in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Dallas-Fort Worth to London in March from 505€

Return flights