$143 Cheap Frontier Airlines flights San Francisco (SFO) to Denver (DEN)

View $143 flight on Fri, Jun 27, 2025Opens in a new window

$143 Cheap Frontier Airlines flights San Francisco (SFO) to Denver (DEN)

Prices were available within the past 7 days and start at $143 for one-way flights and $237 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$237
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $237 Found 2 days ago
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$242
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $242 Found 2 days ago
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$261
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $261 Found 2 days ago
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$266
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $266 Found 2 days ago
Frontier Airlines
Tue, Jul 8 - Sun, Jul 20
SFO
San Francisco
DEN
Denver
$268
Roundtrip
Found 3 days ago
Select Frontier Airlines flight, departing Tue, Jul 8 from San Francisco to Denver, returning Sun, Jul 20, priced at $268 Found 3 days ago
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$275
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $275 Found 2 days ago
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$302
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $302 Found 2 days ago
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$303
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $303 Found 2 days ago
Frontier Airlines
Fri, Jun 27 - Sun, Jun 29
SFO
San Francisco
DEN
Denver
$325
Roundtrip
Found 2 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from San Francisco to Denver, returning Sun, Jun 29, priced at $325 Found 2 days ago
Flights from San Francisco (SFO) to Denver (DEN)
Origin airport
San Francisco Intl.
Destination airport
Denver Intl.
Distance
1544 km
Average flight time
3 hours 31 mins