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

Return flights

10 Mar - 17 Mar	Air Canada
10 Mar - 16 Mar	Air Canada
15 Mar - 24 Mar	Air Canada
15 Mar - 23 Mar	Air Canada
03 Mar - 11 Mar	Lufthansa
29 Mar - 13 Apr	Lufthansa
04 Mar - 04 Apr	Air France
10 Mar - 15 Mar	Air Canada
04 Mar - 07 Mar	Air Canada
24 Mar - 31 Mar	Iberia
08 Mar - 15 Mar	Air Canada
04 Mar - 18 Mar	Air Canada
17 Mar - 04 Apr	Lufthansa
16 Mar - 06 Apr	Lufthansa
29 Mar - 27 Apr	Lufthansa
04 Mar - 03 Apr	Aeromexico

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 $469

Return flights