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

Return flights

06 May - 09 May	Air Canada
19 May - 02 Jun	Air Canada
19 May - 30 May	Air Canada
14 May - 31 May	Air Canada
25 May - 29 May	Spirit Airlines
13 May - 20 May	Finnair
13 May - 27 May	Finnair
25 May - 02 Jun	Spirit Airlines
09 May - 16 May	Finnair
29 May - 02 Jun	Spirit Airlines
02 May - 09 May	Iberia
22 May - 31 May	Spirit Airlines
19 May - 31 May	Finnair
20 May - 12 Jun	Finnair
24 May - 12 Jun	Finnair
30 May - 15 Jun	Spirit Airlines
26 May - 05 Jun	Finnair
24 May - 13 Jun	Finnair
28 May - 07 Jun	Iberia
20 May - 01 Jun	Spirit Airlines

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

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 May from $736

Return flights