The cheapest times to fly from SAN to BLI are

  • January 8th to March 18th (except the week of February 19th)
  • July 30th to November 18th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SAN to BLI is early to mid October. Prices can be as high as $5762 for Sunday flights during late July, or as low as $184 for Tuesday flights around early to mid October.


When to Fly to Bellingham

Flying from San Diego, CA (SAN) to Bellingham, WA (BLI) will usually cost between $248 to $585 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid October with an average ticket price of $268. Due to high demand the most expensive time to fly is late July, with an average price of $2681. Planning your trip to low-cost times can easily save you $2413 on economy flights and even more on first-class flights. Generally, any price below $362 can be considered a good price for a round-trip SAN to BLI flight.

See below for a graph of average weekly prices for the SAN to BLI route. All prices are for round-trip tickets in USD.

SAN to BLI Flight Prices

Compared to other flights, the SAN to BLI flight is much cheaper than the average and costs much less than the average flight leaving from San Diego. The average price per mile (for a direct flight) is $0.2, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $168 (31%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $331. Return trip prices are from the BLI to SAN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SAN to BLI can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 3 hour 2 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from SAN to BLI while comparing.

Destination alternative #1: Seattle/Tacoma International Airport (SEA) in Seattle, WA

  • 93 miles (150 km) away from BLI
  • Usually 50.83% less expensive than BLI
  • Nonstop flights available

See SAN to SEA flights

Destination alternative #2: Snohomish County Airport (PAE) in Everett, WA

  • 62 miles (100 km) away from BLI
  • Usually 39.78% less expensive than BLI
  • Nonstop flights available

See SAN to PAE flights

Destination alternative #3: Vancouver International Airport (YVR) in Vancouver

  • 40 miles (64 km) away from BLI
  • Usually 20.72% less expensive than BLI
  • Nonstop flights available

See SAN to YVR flights

Destination alternative #4: Pangborn Memorial Airport (EAT) in Wenatchee, WA

  • 144 miles (232 km) away from BLI
  • Usually 14.36% less expensive than BLI
  • 1-layover flights available

See SAN to EAT flights


Flight Questions Answered

Still have questions about flying from SAN to BLI? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, Allegiant, American, Delta, United, and potentially more during busy seasons.

How far away is it from Bellingham International Airport to San Diego International Airport?

The distance between the two airports is roughly 1143 miles or 1839 kilometers.

How long does it take to fly from SAN to BLI?

The real-world flight time for a nonstop SAN to BLI flight is about 3 hour 2 minutes.

How many flights go between San Diego, CA and Bellingham, WA?

It depends on the day of the week and the date, but a typical day might have around 54 available flights from SAN to BLI.


Airport Location Info


Departing Airport

Origination code SAN
Origination airport name San Diego International Airport
City San Diego, CA
Country the United States
Latitude 32.7
Longitude -117.2

Return Airport

Destination code BLI
Destination airport name Bellingham International Airport
City Bellingham, WA
Country the United States
Latitude 48.8
Longitude -122.5


Late and Early Flight Data

Flights from SAN to BLI tend to depart late almost never compared to the average flight. According to our recently updated data, 11% of flights departed 5 or more minutes late, and 22% of flights left 5 or more minutes early. On average you can expect to leave BLI heading for SAN about at the time listed on your ticket. This does not significantly impact arrival time, as the average landing time in Bellingham, WA is about 6 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • Allegiant: on time
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.