Southwest Flights: Search & Compare Deals

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Quick facts about Southwest

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

Cheapest Route	£29
Most Popular Route	SFO to LAX
Shortest flight	0h 40m
Longest Flight	3h 10m

The cheapest route Southwest flies is from San Diego to Oakland for £29

Flying from San Francisco to Los Angeles is currently the most popular Southwest route

The quickest Southwest flight route is 0h 40m from Kahului (OGG) to Kailua-Kona (KOA)

The longest Southwest flight route is 3h 10m from Fort Lauderdale (FLL) to Dallas (DAL)

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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. Aeromexico, 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, Denver Intl, and Dallas Love Field 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 San Diego to Fresno Airterminal. This route is £57 per ticket and has 0 stops. Flying from San Diego to Oakland is the cheapest one-way domestic flight with Southwest. This flight costs £29 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

8.0

Very Good4,299 verified ratings

8.0Comfort

7.0Food

8.1Boarding

7.5Entertainment

8.6Crew

8.0 Very Good

Nesrin, Feb 2026

Punctual flights but slow deplaning.

8.0 Very Good

Nesrin, Feb 2026

Deplaning! What is up with the deplaning? It is mind blowingly slow. All four flights, the same issue. People waiting until the last minute to get their carryons. No one even gets up until the aisle ahead of them is clear. How frustrating. Flight attendants don’t seem to be bothered because they watch rather than encourage people to hurry up. Almost missed my connection because it took half an hour to leave from seat 15C!

10.0 Wonderful

Marilyn, Feb 2026

I've been on three flights in the last 3 days and this was the only one that had free drinks so I appreciate that

8.0 Very Good

Angelo, Jan 2026

It was great! Customer service was on point per usual. Each leg had an issue with the wifi at some point in the flight which was frustrating.

10.0 Wonderful

Antonio, Jan 2026

Smooth and on time. Doesn't get better.