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Quick facts about Southwest

Find info about flight duration, flight prices, and popular routes for Southwest

Cheapest Route	£36
Most Popular Route	DEN to LAX
Shortest flight	1h 00m
Longest Flight	2h 35m

The cheapest route Southwest flies is from Harlingen Valley Intl to Austin Bergstrom for £36

Flying from Denver Intl to Los Angeles is currently the most popular Southwest route

The quickest Southwest flight route is 1h 00m from Honolulu (HNL) to Hilo (ITO)

The longest Southwest flight route is 2h 35m from San Diego (SAN) to Eugene (EUG)

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Information about flying with Southwest

Does Southwest have flights from London Heathrow?

No, Southwest has no scheduled flights out of London Heathrow. However, Southwest does fly out of Portland. There are also other airline options to choose from if you still want to book a flight from London Heathrow. Air France, for example, is an airline that flies out of London Heathrow on a regular basis.

What are the top airports Southwest serves?

Phoenix Sky Harbor Intl, Dallas Love Field, and Baltimore/Washington are the most popular airports Southwest uses on a routine basis throughout the year.

How do I check the flight status for Southwest?

To check the flight status of Southwest, you can give them a call at +1 800 435 9792 or visit their website at southwest.com. Or, you can use our on-page Flight Tracker that provides you with real-time Southwest flight information, including terminal and gate number, arrival and departure times, and flight status.

What is the cheapest domestic Southwest flight?

The cheapest domestic return Southwest flight is from Austin Bergstrom to Harlingen Valley Intl. This route is £72 per ticket and has 0 stops. Flying from Harlingen Valley Intl to Austin Bergstrom is the cheapest one-way domestic flight with Southwest. This flight costs £36 per ticket and has 0 stops.

What are the bag size limits for Southwest?

Flying with Southwest does have some restrictions when it comes to baggage dimensions. If you choose to bring one, your checked bag should be 62in or smaller. Carry-on luggage must be 23x15x9in or smaller, and a personal item should be within 18x13x8in.

Southwest Reviews

7.9

Good4,235 verified ratings

8.0Comfort

8.6Crew

7.5Entertainment

8.1Boarding

7.0Food

6.0 Okay

Anonymous, Jun 2026

Okay. The wifi kept going in and out. The boarding process continues to suck, like all airlines I think. Still miss the orderly boarding before the changes.

10.0 Wonderful

La Tracimeldamarcos, Jun 2026

I liked how easygoing everyone was and in tuned to detail. I especially loved how the flight attendants did what they could to help some parents keep their children calm and safe the entire flight. That meant a lot.

4.0 Mediocre

Anonymous, May 2026

When flight was cancalled they should have given more then water

10.0 Wonderful

Craig, Apr 2026

Came in a couple minutes late they went out of their way to help me make sure I get on my flight

6.0 Okay

Anonymous, Mar 2026

The flight was late, boarding took longer than it should have, it’s not offered anything to drink, and in Flight entertainment options were limited