Earn point on your loyalty program!arrow arc left

Cheap flights from Great Falls (GTF) to San Diego (SAN)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Great Falls (GTF) to San Diego (SAN)

How to find the cheapest flight from Great Falls (GTF) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Great Falls (GTF) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Great Falls (GTF) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Great Falls to San Diego in December 2025 , January 2026

29 Dec - 02 Jan $ 654.00
GTF
Great Falls
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
GTF
Great Falls
Pick dates
18 Dec - 07 Jan $ 692.00
GTF
Great Falls
Alaska Airlines
2 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
GTF
Great Falls
Pick dates
18 Dec - 05 Jan $ 1,291.00
GTF
Great Falls
Alaska Airlines
2 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
GTF
Great Falls
Pick dates

Last minute flights from Great Falls to San Diego

24 Dec - 31 Dec $ 779.00
GTF
Great Falls
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
GTF
Great Falls
Pick dates
24 Dec - 31 Dec $ 779.00
GTF
Great Falls
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
GTF
Great Falls
Pick dates
24 Dec - 31 Dec $ 1,116.00
GTF
Great Falls
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
GTF
Great Falls
Pick dates

One-way flights to San Diego from Great Falls

10:25 PM - 10:53 AM
Frontier Airlines
1 Stops
14h 46m
GTF - SAN
$ 213
Kiwi
Pick dates
2:35 PM - 7:15 PM
United Airlines
1 Stops
7h 12m
GTF - SAN
$ 542
Kiwi
Pick dates
2:35 PM - 7:15 PM
United Airlines
1 Stops
7h 10m
GTF - SAN
$ 543
Kiwi
Pick dates

How to find the cheapest flight from Great Falls (GTF) to San Diego (SAN)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Great Falls (GTF) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Great Falls (GTF) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.