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Find cheap flights from Idaho to San Antonio from $42

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 Antonio departing on 5/15. 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
Sun 6/2
Sun 6/9

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In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

December

Cheapest flight

$42
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Boise to San Antonio

FAQs for booking flights from Idaho to San Antonio

  • How does KAYAK find such low prices on flights from Idaho to San Antonio?

    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 Idaho to San Antonio.

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

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

    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 Antonio with an airline and back to Idaho with another airline.

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

    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 Antonio from Idaho 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 Idaho to San Antonio?

Find which airlines fly direct from Idaho to San Antonio, which days they fly and book direct flights.

Nonstop departures

Idaho to San Antonio

Monday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Tuesday

ANA, Aer Lingus, Aeromexico, +33 more

ANA, Aer Lingus, +34 more

Wednesday

ANA, Aer Lingus, Aeromexico, +34 more

ANA, Aer Lingus, +35 more

Thursday

ANA, Aer Lingus, Aeromexico, +35 more

ANA, Aer Lingus, +36 more

Friday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Saturday

ANA, Aer Lingus, Aeromexico, +34 more

ANA, Aer Lingus, +35 more

Sunday

ANA, Aer Lingus, Aeromexico, +35 more

ANA, Aer Lingus, +36 more

See more direct flights

Nonstop returns

San Antonio to Idaho

Monday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Tuesday

ANA, Aer Lingus, Aeromexico, +33 more

ANA, Aer Lingus, +34 more

Wednesday

ANA, Aer Lingus, Aeromexico, +34 more

ANA, Aer Lingus, +35 more

Thursday

ANA, Aer Lingus, Aeromexico, +35 more

ANA, Aer Lingus, +36 more

Friday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Saturday

ANA, Aer Lingus, Aeromexico, +34 more

ANA, Aer Lingus, +35 more

Sunday

ANA, Aer Lingus, Aeromexico, +35 more

ANA, Aer Lingus, +36 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to San Antonio

Recent round-trip flight deals

5/18Sat
1 stopSpirit Airlines
5h 49mBOI-SAT
5/21Tue
1 stopSpirit Airlines
14h 40mSAT-BOI
$103
5/14Tue
1 stopSpirit Airlines
26h 55mBOI-SAT
5/18Sat
1 stopSpirit Airlines
10h 19mSAT-BOI
$116
5/20Mon
1 stop
6h 21mBOI-SAT
6/26Wed
2 stops
18h 48mSAT-BOI
$269
9/24Tue
2 stopsDelta
7h 59mLWS-SAT
9/28Sat
2 stopsDelta
8h 44mSAT-LWS
$276
5/20Mon
1 stop
6h 21mBOI-SAT
6/26Wed
3 stops
18h 48mSAT-BOI
$294
9/24Tue
2 stopsDelta
7h 59mLWS-SAT
9/28Sat
1 stopDelta
5h 48mSAT-LWS
$302
8/14Wed
2 stopsAmerican Airlines
8h 09mBOI-SAT
8/20Tue
1 stopAmerican Airlines
7h 43mSAT-BOI
$366
5/30Thu
1 stopAmerican Airlines
7h 11mGEG-SAT
6/1Sat
1 stopAmerican Airlines
6h 23mSAT-GEG
$368
5/30Thu
1 stopUnited Airlines
5h 37mLWS-SAT
6/6Thu
1 stopUnited Airlines
18h 36mSAT-LWS
$430
9/24Tue
1 stopUnited Airlines
16h 24mLWS-SAT
9/28Sat
1 stopUnited Airlines
7h 30mSAT-LWS
$453

Search by stops

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Recent one-way flight deals

5/15Wed
1 stopSpirit Airlines
5h 23mBOI-SAT
$42
5/14Tue
1 stopSpirit Airlines
5h 23mBOI-SAT
$54
5/14Tue
2 stopsSpirit Airlines
23h 12mBOI-SAT
$77
5/17Fri
1 stopSpirit Airlines
25h 28mBOI-SAT
$99
7/29Mon
1 stopUnited Airlines
26h 00mIDA-SAT
$289
7/29Mon
2 stopsUnited Airlines
16h 03mIDA-SAT
$299
7/9Tue
1 stopDelta
4h 39mIDA-SAT
$314
7/10Wed
2 stopsDelta
10h 26mIDA-SAT
$319
7/8Mon
1 stopDelta
4h 39mIDA-SAT
$344
7/29Mon
3 stopsUnited Airlines
11h 08mIDA-SAT
$802

Search by stops

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Last minute flights from Idaho to San Antonio

Last minute flight, train and bus deals

5/8Wed
multi-stopSpirit Airlines
22h 05mBOI-SAT
5/11Sat
multi-stopSpirit Airlines
14h 40mSAT-BOI
$322
5/8Wed
multi-stop
5h 23mBOI-SAT
5/11Sat
multi-stop
24h 12mSAT-BOI
$446
5/5Sun
multi-stopSpirit Airlines
21h 19mBOI-SAT
5/11Sat
multi-stopSpirit Airlines
10h 19mSAT-BOI
$475
5/4Sat
multi-stopDelta
6h 05mBOI-SAT
5/12Sun
multi-stopDelta
13h 45mSAT-BOI
$635
5/4Sat
multi-stopAmerican Airlines
8h 14mBOI-SAT
5/12Sun
multi-stopAmerican Airlines
9h 00mSAT-BOI
$697
5/6Mon
multi-stopDelta
6h 41mGEG-SAT
5/9Thu
multi-stopDelta
7h 38mSAT-GEG
$742
5/5Sun
multi-stopUnited Airlines
8h 00mBOI-SAT
5/11Sat
multi-stopUnited Airlines
11h 46mSAT-BOI
$742
5/6Mon
multi-stopAmerican Airlines
10h 40mGEG-SAT
5/9Thu
multi-stopAmerican Airlines
6h 56mSAT-GEG
$747
5/6Mon
multi-stopAlaska Airlines
13h 12mIDA-SAT
5/8Wed
multi-stopAlaska Airlines
8h 51mSAT-IDA
$909
5/6Mon
multi-stopUnited Airlines
27h 52mIDA-SAT
5/8Wed
multi-stopUnited Airlines
7h 12mSAT-IDA
$949

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Flights to San Antonio

Destination:

San Antonio (SAT)United States

Return flight deals:

San Antonio - Idaho

Cabin classes: