Cheap Flights from San Diego International to Billings

Compare San Diego International to Billings flight deals

Find the cheapest month or even day of the year to fly to Billings

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Flight deals from San Diego International to Billings

Looking for a cheap last-minute deal or the best return flight from San Diego International Airport to Billings Airport? If you want to travel next month, return fares start from Rs104,158. Find the lowest prices on one-way and return tickets right here.

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

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

San Diego International to Billings: Alternative routes

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

San Diego to Billings: Flight information

The things to know before you go.
Cheapest flight foundRs31,774
Cheapest month to flyNovember

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

The best price we found for a return flight from San Diego International to Billings is Rs104,158. 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 San Diego International to Billings. But we found flights with one or more stops from Rs104,158.
As of August 2026, there are no flights flying from San Diego International to Billings.
The cheapest month to fly from San Diego International to Billings is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to Billings Airport on Friday, 11 September 2026.
No airlines currently offer direct flights between San Diego International Airport and Billings 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 Billings 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 Billings is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, United offers the cheapest flight tickets to Billings.

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

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Make sure you're at the airport on time to board your SAN to BIL flight.

  • Flying during a peak month like August? Public holidays and other high seasons can result in longer queues at security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before domestic departures.

  • If you'd like to explore another city along the way, just deselect 'Direct flights only' when searching for your ticket from San Diego International Airport to Billings Airport. These are the most popular stopovers between SAN and BIL:

    • Denver International Airport

    • Phoenix Sky Harbour Airport

    • Harry Reid International Airport

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

  • At the moment, Rs31,774 is the lowest price we've found for a one-way San Diego International Airport to Billings Airport flight. The best price for a return plane ticket is Rs103,986. Bear in mind that fares could change due to availability at the time of booking.

  • It's usually best to book in advance if you want to find cheap tickets from SAN to BIL. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

  • If you're willing to be flexible with your travel plans, try using the 'Whole month' search tool. It'll give you the lowest price across every month when looking for your flight from San Diego International Airport to Billings Airport.

  • You don't need to check back in every day to see if fares have gone down when you create a Price Alert. We'll let you know the moment there's a better deal on cheap flights from SAN to BIL.

  • Select your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from San Diego International Airport to Billings Airport.

Handy information about San Diego International Airport (SAN)

  • You'll find SAN at N Harbour Dr.

  • 74% of flights departing from San Diego International Airport touch down at their destination on time.

  • San Diego International Airport is around 5 kilometres from central San Diego. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.

  • Planning to take public transport? You can expect a journey time of around 25 minutes.

  • Get your break off to a hassle-free start by staying near SAN. Whether you're taking an early flight from San Diego International Airport to Billings Airport or just don't want to be rushed, these stays are the answer:

Arriving at Billings Airport (BIL)

  • The last thing you need is a lengthy journey to your hotel if you're arriving on a late San Diego International Airport to Billings Airport flight. Stay at one of these accommodation options near BIL instead:

  • Hit the road running by picking up a Billings Airport rental car. Grab a set of wheels from Alamo, Budget or Rent a Wreck and explore beyond Billings's main sights.

  • Reserve your ride from Billings Airport a few weeks before your departure to get the best possible rate. If you're planning to travel during a peak period, it's smart to book even earlier.

Getting from Billings Airport (BIL) to central Billings

  • BIL is located at 1901 Terminal Circle, Room 216.

  • Billings Airport is roughly 10 kilometres from central Billings. The drive time takes about 15 minutes.

  • Getting there by public transport takes roughly 30 minutes.

When to fly to Billings Airport (BIL)

  • September is the busiest month for flights from San Diego International Airport to Billings Airport. To skip the crowds, head to Billings in March.

  • The warmest month in Billings is July, with the temperature ranging between 13ºC and 34ºC. Book your flights from San Diego International Airport to Billings Airport in this month if this is the type of weather you like.

  • Look for cheap tickets from SAN to BIL in February if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -18ºC and 8ºC on average.

Explore more of the United States

  • Billings is easy to fall in love with, but there are so many other parts of the United States waiting to be explored. Around 451 kilometres south-east of Billings, a trip to Rapid City will keep you on the move. Start with leading sights like Dinosaur Park, President Abraham Lincoln Statue and Lakota Dream Museum and Monument.

  • Around 434 kilometres west of Billings, Missoula is another favourite stop in the United States. Experience the best of this destination with a visit to Mt Jumbo, Lolo Natioal Forest and Missoula Art Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.