Cheap Flights To Cost 2025

Cost Flights as Low as $100

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, Oct 18 - Sat, Nov 1
LAX
Los Angeles Intl.
SAT
San Antonio Intl.
$100 Roundtrip, found 2 days ago
$100
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Sat, Oct 18 from Los Angeles Intl. to San Antonio Intl., returning Sat, Nov 1, priced at $100 found 2 days ago
Frontier Airlines
Wed, Sep 17 - Tue, Sep 30
PDX
Portland Intl.
AUS
Austin-Bergstrom Intl.
$105 Roundtrip, found 1 day ago
$105
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Sep 17 from Portland Intl. to Austin-Bergstrom Intl., returning Tue, Sep 30, priced at $105 found 1 day ago
Spirit Airlines
Tue, Jul 29 - Sat, Aug 2
LAX
Los Angeles Intl.
SAT
San Antonio Intl.
$110 Roundtrip, found 22 hours ago
$110
Roundtrip
found 22 hours ago
Select Spirit Airlines flight, departing Tue, Jul 29 from Los Angeles Intl. to San Antonio Intl., returning Sat, Aug 2, priced at $110 found 22 hours ago
Frontier Airlines
Tue, Sep 16 - Tue, Sep 30
PDX
Portland Intl.
AUS
Austin-Bergstrom Intl.
$115 Roundtrip, found 1 day ago
$115
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Sep 16 from Portland Intl. to Austin-Bergstrom Intl., returning Tue, Sep 30, priced at $115 found 1 day ago
Spirit Airlines
Fri, Aug 1 - Sat, Aug 2
LAX
Los Angeles Intl.
SAT
San Antonio Intl.
$120 Roundtrip, found 22 hours ago
$120
Roundtrip
found 22 hours ago
Select Spirit Airlines flight, departing Fri, Aug 1 from Los Angeles Intl. to San Antonio Intl., returning Sat, Aug 2, priced at $120 found 22 hours ago
Frontier Airlines
Fri, Jul 4 - Sat, Jul 5
ATL
Hartsfield-Jackson Atlanta Intl.
AUS
Austin-Bergstrom Intl.
$136 Roundtrip, found 16 hours ago
$136
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Fri, Jul 4 from Hartsfield-Jackson Atlanta Intl. to Austin-Bergstrom Intl., returning Sat, Jul 5, priced at $136 found 16 hours ago
Delta
Sat, Aug 9 - Sat, Aug 16
LAX
Los Angeles Intl.
AUS
Austin-Bergstrom Intl.
$149 Roundtrip, found 4 days ago
$149
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Aug 9 from Los Angeles Intl. to Austin-Bergstrom Intl., returning Sat, Aug 16, priced at $149 found 4 days ago
American Airlines
Wed, Oct 8 - Wed, Oct 8
LAX
Los Angeles Intl.
SAT
San Antonio Intl.
$162 Roundtrip, found 3 days ago
$162
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Oct 8 from Los Angeles Intl. to San Antonio Intl., returning Wed, Oct 8, priced at $162 found 3 days ago
Delta
Thu, Aug 14 - Sun, Aug 17
ATL
Hartsfield-Jackson Atlanta Intl.
SAT
San Antonio Intl.
$169 Roundtrip, found 3 days ago
$169
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Aug 14 from Hartsfield-Jackson Atlanta Intl. to San Antonio Intl., returning Sun, Aug 17, priced at $169 found 3 days ago
Delta
Mon, Oct 20 - Wed, Oct 22
IND
Indianapolis Intl.
AUS
Austin-Bergstrom Intl.
$197 Roundtrip, found 6 hours ago
$197
Roundtrip
found 6 hours ago
Select Delta flight, departing Mon, Oct 20 from Indianapolis Intl. to Austin-Bergstrom Intl., returning Wed, Oct 22, priced at $197 found 6 hours ago
United
Wed, Oct 22 - Sat, Oct 25
IND
Indianapolis Intl.
AUS
Austin-Bergstrom Intl.
$214 Roundtrip, found 6 hours ago
$214
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Oct 22 from Indianapolis Intl. to Austin-Bergstrom Intl., returning Sat, Oct 25, priced at $214 found 6 hours ago
Spirit Airlines
Mon, Sep 29 - Fri, Oct 3
IND
Indianapolis Intl.
SAT
San Antonio Intl.
$219 Roundtrip, found 3 days ago
$219
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Mon, Sep 29 from Indianapolis Intl. to San Antonio Intl., returning Fri, Oct 3, priced at $219 found 3 days ago
Hawaiian Airlines
Sun, Sep 14 - Sun, Sep 28
PDX
Portland Intl.
AUS
Austin-Bergstrom Intl.
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Sun, Sep 14 from Portland Intl. to Austin-Bergstrom Intl., returning Sun, Sep 28, priced at $237 found 1 day ago
Alaska Airlines
Wed, Sep 3 - Mon, Sep 8
PDX
Portland Intl.
AUS
Austin-Bergstrom Intl.
$247 Roundtrip, found 10 hours ago
$247
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Wed, Sep 3 from Portland Intl. to Austin-Bergstrom Intl., returning Mon, Sep 8, priced at $247 found 10 hours ago
Delta
Fri, Jul 4 - Tue, Jul 15
ECP
Northwest Florida Beaches Intl.
SAT
San Antonio Intl.
$293 Roundtrip, found 3 days ago
$293
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Jul 4 from Northwest Florida Beaches Intl. to San Antonio Intl., returning Tue, Jul 15, priced at $293 found 3 days ago
American Airlines
Fri, Jul 4 - Sat, Jul 5
ECP
Northwest Florida Beaches Intl.
AUS
Austin-Bergstrom Intl.
$531 Roundtrip, found 8 hours ago
$531
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Fri, Jul 4 from Northwest Florida Beaches Intl. to Austin-Bergstrom Intl., returning Sat, Jul 5, priced at $531 found 8 hours ago

Cheap Cost Flights

For seniors interested in answering the call of adventure, use Expedia and AARP to book your plane tickets. Browse AARP Travel Center flights in Cost so you can stretch your travel budget further when you save big on your airfare. These available Cost best deals on flights make planning your trip more affordable and hassle-free.

See the vast selection of cheap flights for seniors in Cost for yourself by simply entering your travel dates and destinations. This time and money-saving search engine will then produce a variety of travel times, airline carriers, and senior flights in Cost, so you can find the flight best suiting your travel plans. What’s more, on top of these deals, AARP members are exempt from paying any additional booking fees associated with Cost senior flights. Snatch these discount airline tickets and embark on your adventure today.