C$133 Cheap Flights from Billings (BIL) to San Diego (SANA)

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Flight deals from Billings to San Diego

Looking for a cheap last-minute deal or the best return flight from Billings Airport to San Diego? If you want to travel next month, return fares start from C$332. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Billings to San Diego

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

Alternative Billings to San Diego routes

Looking for the cheapest, fastest or easiest route from Billings to San Diego? You could fly into the following airports instead.

Billings to San Diego: Flight information

The things to know before you go.
Cheapest flight foundC$133
Cheapest month to flyAugust

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

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Billings to San Diego is C$332. 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. But we found flights with one or more stops from C$332.
As of May 2026, there are no flights flying from Billings to San Diego.
The cheapest month to fly from Billings to San Diego is usually June.
If you're flying from Billings Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from C$332.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Billings Airport to San Diego on Monday, June 15, 2026.
No airlines currently offer direct flights between Billings Airport and San Diego. 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 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.
In May, the average temperature is usually around 17°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, Allegiant Air offers the cheapest flight tickets to San Diego.

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

  • Billings Logan International Airport is located in Billings. Based in the UTC-7 timezone, San Diego is 1 hour behind Billings.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to catch your flight from BIL to San Diego.

  • If you're going away during a peak month like July, make your way to the airport even earlier. It's wise to arrive up to four hours before an international flight and two hours ahead of domestic departures. Security lines will be longer during vacation periods like Thanksgiving, Christmas and New Year.

  • You won't need your passport or a visa to fly within United States. You will need a valid proof of identity however, like a driver's licence or an ID card. Make sure they're on your packing list once you've booked your flight tickets from Billings Logan International Airport to San Diego.

  • BIL is about 5 kilometres from central Billings. If you're ride-sharing, driving or catching a cab from the centre, it'll take 8 minutes or so to get there, depending on the traffic. If you're using public transport, expect the journey time to be around 24 minutes.

  • After an easy start to your travels? Stay near BIL. Whether you've booked an early flight from Billings Logan International Airport to San Diego or just don't want to be rushed, these hotels are ideal:

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

  • C$133 is the best price for a one-way ticket from Billings Logan International Airport to San Diego. A return flight starts at C$332. These fares can change based on availability and demand.

  • It's usually smart to book ahead of time if you're looking for cheap tickets from BIL to San Diego. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.

  • Finding cheap tickets from Billings Logan International Airport to San Diego is more likely if you're flexible with your travel dates. Use the 'Whole month' tool to show the best prices across every month and land a great deal.

  • Sign into your online account or use the app to set up a Price Alert. We'll let you know straight away if there's a cheaper deal on this route. It doesn't take long, and it'll save you from looking for cheap tickets from BIL to San Diego every day.

  • Play around with the filters to find your ideal trip. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Billings Logan International Airport to San Diego, use the 'Sort by' function. You can also filter by departure and arrival times, airline, and journey duration.

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) is around 5 kilometres from the centre of San Diego. With your own car rental or if you take a cab, the drive is about 9 minutes.

  • It'll take around 20 minutes to get there by public transport.

  • Consider staying in a hotel close to SAN if you have a late flight from Billings Logan International Airport to San Diego. Choose one of these accommodation options and avoid the hassle of a long transfer:

McClellan-Palomar Airport (CLD)

  • Once your flight from Billings Logan International Airport to San Diego has hit the tarmac, you can get to the city centre in around 39 minutes by car. Central San Diego is approximately 56 kilometres from McClellan-Palomar Airport (CLD).

  • You can also travel by public transport, which typically takes 2 hours and 14 minutes.

  • After your flight from BIL to San Diego, tuck yourself in at a hotel near CLD. These are some comfortable accommodation options that'll help you get into relaxation mode:

Best time to go to San Diego

  • It's time to work out your dates for your flight from Billings Logan International Airport to San Diego. July is the most popular month for a trip to San Diego. If you want a quieter vibe, go in May.

  • Before locking in your flight from Billings Logan International Airport to San Diego, think about the kind of weather you enjoy. August is the warmest month in San Diego, with temperatures ranging from 17ºC to 28ºC.

  • Search for cheap flights from BIL to San Diego in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 7ºC and 23ºC on average.

More about San Diego

Complete your San Diego trip with a car rental

  • Select one of our car rentals in San Diego and explore the city at your own pace. Easily compare rates in one go to find the perfect set of wheels after booking your hotel and cheap flights from Billings Logan International Airport to San Diego.

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