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$39 Find cheap flights from Colorado to San Diego

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 Diego 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
Thu 7/11
Thu 7/18

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In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$39
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Denver to San Diego

FAQs for booking flights from Colorado to San Diego

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

    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 Diego.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego 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 Diego?

    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 Diego 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 Diego?

    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 Diego 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 Diego?

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

Nonstop departures

Colorado to San Diego

Monday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Tuesday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Wednesday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Thursday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Friday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Saturday

ANA, Aer Lingus, Aeromexico, +56 more

ANA, Aer Lingus, +57 more

Sunday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

See more direct flights

Nonstop returns

San Diego to Colorado

Monday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Tuesday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Wednesday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Thursday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Friday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

Saturday

ANA, Aer Lingus, Aeromexico, +56 more

ANA, Aer Lingus, +57 more

Sunday

ANA, Aer Lingus, Aeromexico, +57 more

ANA, Aer Lingus, +58 more

See more direct flights
See more direct flights

Book cheap flights from Colorado to San Diego

Recent round-trip flight deals

7/2Tue
nonstopFrontier
2h 26mDEN-SAN
7/9Tue
nonstopFrontier
2h 36mSAN-DEN
$57
6/25Tue
nonstopFrontier
2h 28mDEN-SAN
6/26Wed
nonstopFrontier
2h 28mSAN-DEN
$58
8/28Wed
1 stopUnited Airlines
5h 59mDEN-SAN
8/31Sat
nonstopUnited Airlines
2h 26mSAN-DEN
$130
8/28Wed
1 stopUnited Airlines
5h 59mDEN-SAN
8/31Sat
nonstopUnited Airlines
2h 26mSAN-DEN
$153
8/23Fri
1 stopAmerican Airlines
5h 44mCOS-SAN
8/26Mon
1 stopAmerican Airlines
8h 17mSAN-COS
$188
7/24Wed
1 stopDelta
4h 36mDEN-SAN
7/30Tue
1 stopDelta
4h 36mSAN-DEN
$196
10/13Sun
1 stop
10h 36mDEN-SAN
10/16Wed
nonstop
2h 34mSAN-DEN
$201
7/9Tue
1 stopDelta
4h 36mDEN-SAN
7/10Wed
1 stopDelta
4h 11mSAN-DEN
$206
7/2Tue
1 stopAmerican Airlines
3h 58mDEN-SAN
7/17Wed
1 stopAmerican Airlines
4h 36mSAN-DEN
$207
7/15Mon
2 stops
17h 15mGJT-SAN
7/19Fri
1 stop
5h 00mSAN-GJT
$235

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/18Tue
nonstopFrontier
2h 26mDEN-SAN
$39
9/3Tue
nonstopFrontier
2h 24mDEN-SAN
$41
8/9Fri
nonstopUnited Airlines
2h 22mDEN-SAN
$63
6/28Fri
1 stop
11h 23mGJT-SAN
$80
9/11Wed
1 stopUnited Airlines
5h 59mDEN-SAN
$88
8/9Fri
1 stopAmerican Airlines
4h 58mDEN-SAN
$89
7/16Tue
1 stopDelta
4h 32mDEN-SAN
$98
6/24Mon
1 stopDelta
4h 34mDEN-SAN
$107
6/17Mon
2 stops
16h 33mGJT-SAN
$107
7/9Tue
1 stopAmerican Airlines
4h 55mDEN-SAN
$108

Search by stops

Search by airline

Search by price

Last minute flights from Colorado to San Diego

Last minute flight, train and bus deals

6/15Sat
multi-stopFrontier
4h 30mDEN-SAN
6/18Tue
multi-stopFrontier
6h 41mSAN-DEN
$123
6/15Sat
multi-stopFrontier
4h 30mDEN-SAN
6/22Sat
nonstopFrontier
2h 26mSAN-DEN
$128
6/13Thu
multi-stop
23h 29mDEN-SAN
6/16Sun
multi-stop
14h 45mSAN-DEN
$407
6/13Thu
multi-stop
23h 29mDEN-SAN
6/18Tue
multi-stop
20h 39mSAN-DEN
$432
6/15Sat
multi-stopDelta
4h 37mCOS-SAN
6/18Tue
multi-stopDelta
4h 48mSAN-COS
$433
6/15Sat
multi-stopAmerican Airlines
8h 26mCOS-SAN
6/18Tue
multi-stopAmerican Airlines
7h 14mSAN-COS
$459
6/15Sat
multi-stopAmerican Airlines
8h 26mCOS-SAN
6/18Tue
multi-stopAmerican Airlines
10h 14mSAN-COS
$464
6/16Sun
nonstopUnited Airlines
2h 22mDEN-SAN
6/18Tue
nonstopUnited Airlines
2h 26mSAN-DEN
$532
6/15Sat
multi-stopUnited Airlines
5h 17mDRO-SAN
6/22Sat
multi-stopUnited Airlines
7h 30mSAN-DRO
$597
6/14Fri
multi-stopDelta
4h 25mDEN-SAN
6/17Mon
multi-stopDelta
4h 39mSAN-DEN
$801

Search by stops

Search by airline

Search by price

Flights to San Diego

Destination:

San Diego (SAN)United States

Return flight deals:

San Diego - Colorado

Cabin classes:

$557
$583
$696
$58