Find flights
When to book
FAQs & Tips
Direct Flights
Deals

SFO

$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
Mo 6/17
Mo 6/24

Search hundreds of travel sites at once for deals on flights to San Francisco

In the last 7 days travelers have searched 41,904,688 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

8/6Di
nonstopFrontier
2h 42mDEN-SFO
8/9Fr
nonstopFrontier
2h 32mSFO-DEN
$70
6/4Di
nonstopFrontier
2h 49mDEN-SFO
8/26Mo
nonstopFrontier
2h 32mSFO-DEN
$74
6/5Mi
nonstopFrontier
2h 48mDEN-SFO
6/12Mi
nonstopFrontier
2h 39mSFO-DEN
$78
7/17Mi
1 stop
5h 52mDEN-SFO
7/22Mo
nonstop
2h 32mSFO-DEN
$144
6/2So
1 stop
15h 01mDEN-SFO
6/4Di
nonstop
2h 34mSFO-DEN
$155
7/9Di
1 stopDelta
5h 01mDEN-SFO
7/10Mi
1 stopDelta
4h 55mSFO-DEN
$197
6/12Mi
nonstopBreeze Airways
2h 20mGJT-SFO
6/19Mi
nonstopBreeze Airways
2h 05mSFO-GJT
$198
8/22Do
1 stopAmerican Airlines
4h 46mDEN-SFO
8/27Di
1 stopAmerican Airlines
4h 45mSFO-DEN
$213
8/3Sa
1 stopDelta
4h 45mDEN-SFO
8/16Fr
1 stopDelta
4h 36mSFO-DEN
$232
8/22Do
1 stopAmerican Airlines
6h 58mCOS-SFO
8/27Di
2 stopsAmerican Airlines
8h 22mSFO-COS
$243

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/18Di
nonstopFrontier
2h 47mDEN-SFO
$39
7/9Di
nonstopFrontier
2h 42mDEN-SFO
$41
7/6Sa
1 stopDelta
4h 30mDEN-SFO
$98
8/17Sa
1 stopAmerican Airlines
5h 35mDEN-SFO
$99
6/11Di
1 stopSun Country Air
7h 36mDEN-SFO
$102
6/5Mi
1 stopSun Country Air
16h 22mDEN-SFO
$104
6/8Sa
1 stopDelta
6h 28mDEN-SFO
$108
8/22Do
1 stopAmerican Airlines
4h 46mDEN-SFO
$114
6/26Mi
1 stopUnited Airlines
4h 27mCOS-SFO
$114
7/9Di
1 stopUnited Airlines
6h 06mCOS-SFO
$128

Search by stops

Search by airline

Search by price

Last minute flights from Colorado to San Francisco

Last minute flight, train and bus deals

5/23Do
nonstopFrontier
2h 50mDEN-SFO
5/26So
nonstopFrontier
2h 38mSFO-DEN
$164
5/23Do
nonstopFrontier
2h 50mDEN-SFO
5/30Do
nonstopFrontier
2h 42mSFO-DEN
$176
5/23Do
nonstop
2h 50mDEN-SFO
5/27Mo
multi-stop
8h 01mSFO-DEN
$261
5/22Mi
multi-stop
5h 41mDEN-SFO
5/26So
multi-stop
13h 50mSFO-DEN
$275
5/23Do
multi-stopDelta
4h 27mDEN-SFO
6/1Sa
multi-stopDelta
5h 16mSFO-DEN
$286
5/23Do
multi-stopDelta
4h 27mDEN-SFO
5/23Do
multi-stopDelta
4h 51mSFO-DEN
$387
5/20Mo
multi-stopUnited Airlines
5h 24mCOS-SFO
5/20Mo
multi-stopUnited Airlines
4h 19mSFO-COS
$553
5/21Di
multi-stopAmerican Airlines
4h 50mDEN-SFO
5/22Mi
multi-stopAmerican Airlines
4h 33mSFO-DEN
$557
5/21Di
nonstopUnited Airlines
2h 48mDEN-SFO
5/22Mi
multi-stopUnited Airlines
9h 38mSFO-DEN
$645
5/20Mo
multi-stopAmerican Airlines
10h 10mCOS-SFO
5/20Mo
multi-stopAmerican Airlines
9h 01mSFO-COS
$697

Search by stops

Search by airline

Search by price