Cheap flights from Billings to San Diego International

Compare Billings to San Diego International flight deals

Find the cheapest month or even day of the year to fly to San Diego International

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Find the cheapest month to fly from Billings to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Billings to San Diego International flights are currently cheapest in June.

Billings to San Diego International: Alternative routes

Compare routes from Billings to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

Billings to San Diego: Flight information

The things to know before you go.
Cheapest flight found$137
Cheapest month to flyJune

Finding cheap flights from Billings to San Diego International: Frequently asked questions

The best price we found for a return flight from Billings to San Diego International is $457. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Billings to San Diego International. But we found flights with one or more stops from $457.
As of May 2026, there are no flights flying from Billings to San Diego International.
The cheapest month to fly from Billings to San Diego International is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Billings Airport to San Diego International Airport on Tuesday, 10 November 2026.
No airlines currently offer direct flights between Billings Airport and San Diego International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to San Diego International.

Flying from Billings Logan International Airport (BIL) to San Diego International Airport (SAN): what you need to know

  • The timezone in San Diego is UTC-7, which is one hour behind Billings.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you can comfortably catch your BIL to SAN flight.

  • Flying during a peak time such as July? Public holidays and other popular seasons can lead to longer queues and delays at airport checkpoints. Play things extra safe and arrive up to four hours before an international flight and two hours before a domestic departure.

  • We make it a breeze to book a flight with a stopover. To see your options for tickets from Billings Logan International Airport to San Diego International Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to explore your chosen city. Worthwhile stopovers between BIL and SAN include:

    • Los Angeles International Airport

    • Salt Lake City International Airport

    • Phoenix Sky Harbour International Airport

How to find the cheapest flights from Billings Logan International Airport (BIL) to San Diego International Airport (SAN)

  • The lowest price we've seen for a one-way Billings Logan International Airport to San Diego International Airport flight is $137. A return fare is currently $457. Depending on the availability and when you book, these fares could change.

  • It's usually smart to book as early as possible if you're hoping to get cheap tickets from BIL to SAN. That's because airlines adjust prices based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Billings Logan International Airport to San Diego International Airport is easy if you're flexible with your dates. Use the 'Whole month' search function to see the best prices across the month and land a great deal.

  • You don't need to check back in every day to see if fares have gone down when you set up a Price Alert. We'll update you the moment there's a change in price on cheap flights from BIL to SAN.

  • Tailor your flights using filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Billings Logan International Airport to San Diego International Airport.

Handy information about Billings Logan International Airport (BIL)

  • The address for BIL is 1901 Terminal Circle, Room 216.

  • When it comes to Billings Logan International Airport's on-time performance, 75.96% of flights arrive within the expected timeframe.

  • Billings Logan International Airport is around 5 kilometres from central Billings. If you're driving, ride-sharing or catching a cab from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

  • You can expect a journey time of roughly 25 minutes on public transport.

  • Looking for a convenient hotel near BIL? If you're catching an early flight from Billings Logan International Airport to San Diego International Airport, these stays will have you sleeping moments from check-in:

Arriving at San Diego International Airport (SAN)

Getting from San Diego International Airport (SAN) to central San Diego

  • You'll find SAN at Airport Drive.

  • San Diego International Airport is roughly 5 kilometres from central San Diego. The drive time takes around 10 minutes.

  • If you're taking public transport, expect a journey of around 20 minutes.

When to fly to San Diego International Airport (SAN)

  • July is the most popular month for flights from Billings Logan International Airport to San Diego International Airport. To avoid the crowds, head to San Diego in May.

  • When booking your flight from Billings Logan International Airport to San Diego International Airport, consider the type of weather you enjoy. August is the warmest month in San Diego, with temperatures ranging from 17ºC (63ºF) to 28ºC (82ºF).

  • February has average temperatures of between 7ºC (45ºF) and 23ºC (73ºF). Look for cheap tickets from BIL to SAN around that time if you like travelling in cooler conditions.

Explore more of United States

  • San Diego has plenty going for it, but there are so many other corners of United States waiting to be discovered. About 177 kilometres north-west of San Diego, a visit to Los Angeles will fill your itinerary to the brim. Start with leading attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • If you're ready to explore another side of United States, head for Phoenix, about 483 kilometres east of San Diego. Desert Botanical Garden, Heard Museum and Papago Park are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.