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$39 Find cheap flights from Colorado to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Francisco departing on 6/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 6/18
Tue 6/25

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In the last 7 days travelers have searched 41,611,298 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$39
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Denver to San Francisco

FAQs for booking flights from Colorado to San Francisco

  • How does KAYAK find such low prices on flights from Colorado to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Colorado with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Colorado to San Francisco?

Find which airlines fly direct from Colorado to San Francisco, which days they fly and book direct flights.

Nonstop departures

Colorado to San Francisco

Monday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Tuesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Wednesday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Friday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Saturday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Sunday

AIR PREMIA, ANA, Aer Lingus, +81 more

AIR PREMIA, ANA, +82 more

See more direct flights

Nonstop returns

San Francisco to Colorado

Monday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Tuesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Wednesday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Friday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Saturday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Sunday

AIR PREMIA, ANA, Aer Lingus, +81 more

AIR PREMIA, ANA, +82 more

See more direct flights
See more direct flights

Book cheap flights from Colorado to San Francisco

Recent round-trip flight deals

8/6Tue
nonstopFrontier
2h 42mDEN-SFO
8/9Fri
nonstopFrontier
2h 32mSFO-DEN
$64
6/1Sat
nonstopFrontier
2h 49mDEN-SFO
6/3Mon
nonstopFrontier
2h 36mSFO-DEN
$66
7/30Tue
nonstopFrontier
2h 44mDEN-SFO
8/5Mon
nonstopFrontier
2h 32mSFO-DEN
$68
6/1Sat
nonstopBreeze Airways
2h 20mGJT-SFO
6/8Sat
nonstopBreeze Airways
2h 05mSFO-GJT
$178
6/5Wed
nonstop
2h 48mDEN-SFO
6/11Tue
2 stops
9h 18mSFO-DEN
$195
7/9Tue
1 stopDelta
5h 01mDEN-SFO
7/13Sat
1 stopDelta
5h 30mSFO-DEN
$196
7/4Thu
1 stopDelta
4h 54mDEN-SFO
7/10Wed
1 stopDelta
4h 35mSFO-DEN
$216
8/7Wed
1 stopUnited Airlines
4h 39mCOS-SFO
8/12Mon
1 stopUnited Airlines
7h 01mSFO-COS
$238
10/30Wed
1 stop
8h 07mDEN-SFO
11/5Tue
nonstop
2h 32mSFO-DEN
$241
8/7Wed
1 stopUnited Airlines
5h 09mCOS-SFO
8/11Sun
1 stopUnited Airlines
7h 04mSFO-COS
$250

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Recent one-way flight deals

6/18Tue
nonstopFrontier
2h 47mDEN-SFO
$39
7/9Tue
nonstopFrontier
2h 42mDEN-SFO
$41
6/5Wed
nonstopBreeze Airways
2h 20mGJT-SFO
$79
7/6Sat
nonstopUnited Airlines
2h 41mDEN-SFO
$89
6/29Sat
nonstopBreeze Airways
2h 20mGJT-SFO
$96
6/18Tue
1 stopDelta
6h 28mDEN-SFO
$98
8/17Sat
1 stopAmerican Airlines
5h 35mDEN-SFO
$99
6/8Sat
1 stopDelta
6h 28mDEN-SFO
$108
8/22Thu
1 stopAmerican Airlines
4h 46mDEN-SFO
$114
7/9Tue
1 stopUnited Airlines
6h 06mCOS-SFO
$128

Search by stops

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Last minute flights from Colorado to San Francisco

Last minute flight, train and bus deals

5/24Fri
nonstopFrontier
2h 49mDEN-SFO
6/17Mon
nonstopFrontier
2h 34mSFO-DEN
$164
5/23Thu
multi-stopFrontier
9h 40mDEN-SFO
6/1Sat
nonstopFrontier
2h 41mSFO-DEN
$176
5/22Wed
multi-stopFrontier
5h 41mDEN-SFO
5/25Sat
nonstopFrontier
2h 36mSFO-DEN
$186
5/22Wed
multi-stop
5h 41mDEN-SFO
5/26Sun
multi-stop
13h 50mSFO-DEN
$295
5/21Tue
multi-stop
11h 30mDEN-SFO
6/21Fri
multi-stop
9h 24mSFO-DEN
$297
5/24Fri
multi-stopSun Country Air
23h 51mDEN-SFO
5/27Mon
multi-stopSun Country Air
8h 01mSFO-DEN
$408
5/24Fri
multi-stopUnited Airlines
6h 45mCOS-SFO
5/26Sun
multi-stopUnited Airlines
7h 04mSFO-COS
$411
5/20Mon
multi-stopUnited Airlines
5h 24mCOS-SFO
5/20Mon
multi-stopUnited Airlines
4h 19mSFO-COS
$553
5/24Fri
multi-stopAmerican Airlines
8h 50mCOS-SFO
5/26Sun
multi-stopAmerican Airlines
8h 52mSFO-COS
$580
5/24Fri
multi-stopAmerican Airlines
7h 11mDRO-SFO
5/27Mon
multi-stopAmerican Airlines
8h 58mSFO-DRO
$617

Search by stops

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