$544 Cheap KLM flights Dallas (DFW) to Southampton (SOU)

Landing cheap one-way KLM flights from DFW to SOU from $544 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our affordable round-trip fares from $879 for your next getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Scoring the best KLM deals from DFW to SOU often comes down to timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better still, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is often the most expensive day to book.* It's a good idea to start searching for flights about one month before you plan to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Browse KLM's earliest flights from DFW to SOU by checking the "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Travel from DFW to SOU with KLM and look forward to a host of benefits including a 4-star airline rating. When you book through Expedia as a KLM Flying Blue and One Key™ member, you could also earn OneKeyCash™* to redeem on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.