HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Austin (AUS) to Calgary (YYC) from $117

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. 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.
AUS — YYC
jun. 11 — jun. 181
From?
To?
mar. 6/11
mar. 6/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Austin Bergstrom to Calgary are usually found in January or May, booked 82 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Austin to Calgary

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Calgary (YYC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 6, 2024.

Popular in

March

Cheapest in

January

Round-trip from

$309

One-way from

$143
High demand for flights, 25% potential price rise
Search Deals
Best time to find cheap flights, 30% potential price drop
Search Deals
From Austin Bergstrom to Calgary
Search Deals
One-way flight from Austin Bergstrom to Calgary
Search Deals

What is the cheapest day to fly round-trip from Austin to Calgary?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 23% on the overall cost on flights from Austin to Calgary.

How far in advance should I book a flight from Austin to Calgary?

Users have found that booking a flight from Austin to Calgary at least 51 days early can save you up to 24% on average compared to booking a flight this week. If booking 51 days before your flight isn’t an option for you, users have found flights from Austin to Calgary for as little as $351 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $623 for flights departing within the next 3 days.

What is the cheapest month to fly from Austin to Calgary?

January is one of the best times of the year to fly to Calgary from Austin. Prices for January average $448 per person but you can even find prices for as low as $169. The most expensive prices can be found in the month of March. Opting for a January flight can save you 33% on your journey compared to booking in March

What is the cheapest time of day to fly from AUS to YYC?

One of the essential ways to save on airfare from Austin to Calgary is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 39% on airfare.

Cheap Austin to Calgary flights in June & July 2024

Find cheap flight options from Austin to Calgary specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on junio 6, 2024.
These are some of the most attractive deals on flights from Austin to Calgary in 2024. Check back soon for alternative fares.
mar. 7/239:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
mar. 7/3011:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/6$251
mié. 7/319:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
lun. 8/511:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/5$261
mar. 7/309:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
mar. 8/611:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/5$263
lun. 7/229:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
mar. 7/3011:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/6$271
mar. 7/169:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
dom. 7/2111:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/5$274
mar. 7/239:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
lun. 7/296:40 pmYYC - AUS
2 stops20h 18mMultiple Airlines
Deal found 6/6$285
mié. 7/319:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
jue. 8/811:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/5$289
mar. 7/304:49 pmAUS - YYC
1 stop20h 07mMultiple Airlines
jue. 8/811:00 amYYC - AUS
1 stop8h 23mMultiple Airlines
Deal found 6/5$290
mar. 6/189:16 amAUS - YYC
1 stop8h 31mMultiple Airlines
dom. 6/307:30 pmYYC - AUS
1 stop25h 24mMultiple Airlines
Deal found 6/4$294

Austin to Calgary 2024 flight deals

Discover exclusive flight deals for travel between Austin and Calgary in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
These are some of the most attractive deals on flights from Austin to Calgary in 2024. Check back soon for alternative fares.
mar. 7/239:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
mar. 7/3011:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/6$251
mié. 7/319:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
lun. 8/511:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/5$261
mar. 7/309:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
mar. 8/611:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/5$263
mié. 8/146:00 amAUS - YYC
1 stop9h 38mMultiple Airlines
dom. 8/1811:00 amYYC - AUS
1 stop20h 14mMultiple Airlines
Deal found 6/5$267
lun. 7/229:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
mar. 7/3011:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/6$271
sáb. 8/38:44 pmAUS - YYC
1 stop21h 03mMultiple Airlines
lun. 8/511:00 amYYC - AUS
1 stop8h 00mMultiple Airlines
Deal found 6/5$274
lun. 8/197:18 pmAUS - YYC
2 stops16h 46mMultiple Airlines
mié. 8/2811:00 amYYC - AUS
1 stop6h 33mMultiple Airlines
Deal found 6/5$280
mar. 7/239:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
lun. 7/296:40 pmYYC - AUS
2 stops20h 18mMultiple Airlines
Deal found 6/6$285
mié. 7/319:13 amAUS - YYC
1 stop8h 34mMultiple Airlines
jue. 8/811:00 amYYC - AUS
1 stop20h 13mMultiple Airlines
Deal found 6/5$289

Austin to Calgary flights leaving soon

Find last-minute flight options from Austin to Calgary for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
Have a look at some of the last-minute flights available departing from Austin to Calgary. Users should examine the flight details to ensure there are no surprises.
mar. 6/119:30 amAUS - YYC
1 stop11h 16mAir Canada
mié. 6/196:10 amYYC - AUS
1 stop8h 22mAir Canada
Deal found 6/5$346
mié. 6/1210:20 amAUS - YYC
1 stop7h 31mMultiple Airlines
lun. 6/1711:00 amYYC - AUS
1 stop20h 15mMultiple Airlines
Deal found 6/5$355
mar. 6/114:49 pmAUS - YYC
1 stop20h 09mMultiple Airlines
lun. 6/1711:00 amYYC - AUS
1 stop20h 15mMultiple Airlines
Deal found 6/5$366
jue. 6/139:23 pmAUS - YYC
1 stop16h 57mMultiple Airlines
lun. 6/1711:00 amYYC - AUS
1 stop20h 15mMultiple Airlines
Deal found 6/5$380
mar. 6/112:43 pmAUS - YYC
1 stop8h 00mUnited Airlines
mié. 6/126:25 amYYC - AUS
1 stop5h 50mUnited Airlines
Deal found 6/5$382
mié. 6/1210:20 amAUS - YYC
1 stop7h 31mMultiple Airlines
jue. 6/1311:00 amYYC - AUS
1 stop8h 33mMultiple Airlines
Deal found 6/5$386
mié. 6/1210:20 amAUS - YYC
1 stop7h 31mMultiple Airlines
vie. 6/147:00 amYYC - AUS
1 stop13h 51mMultiple Airlines
Deal found 6/5$393
vie. 6/1410:03 pmAUS - YYC
1 stop24h 29mMultiple Airlines
mar. 9/247:30 pmYYC - AUS
1 stop21h 58mMultiple Airlines
Deal found 6/5$397
mié. 6/1210:20 amAUS - YYC
1 stop7h 31mMultiple Airlines
jue. 6/1311:00 amYYC - AUS
1 stop8h 33mMultiple Airlines
Deal found 6/5$401

One-way flights to Calgary from Austin

Search for one-way flight options from Austin to Calgary. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
Some of the best available deals we've found on one-way flights from Austin to Calgary. Users needing a return flight from Austin to Calgary should utilize the search form above.
jue. 7/114:50 pmAUS - YYC
Nonstop4h 05mWestJet
Deal found 6/6$117
dom. 7/144:50 pmAUS - YYC
Nonstop4h 05mWestJet
Deal found 6/5$123
mar. 6/189:16 amAUS - YYC
1 stop8h 31mMultiple Airlines
Deal found 6/4$125
mié. 7/244:30 pmAUS - YYC
1 stop8h 42mAir Canada
Deal found 6/6$128
dom. 7/142:27 pmAUS - YYC
1 stop27h 20mMultiple Airlines
Deal found 6/5$131
jue. 7/1112:20 pmAUS - YYC
1 stop11h 10mAir Canada
Deal found 6/6$134
mié. 7/244:30 pmAUS - YYC
1 stop8h 42mAir Canada
Deal found 6/5$139
dom. 7/148:55 amAUS - YYC
1 stop13h 55mAmerican Airlines
Deal found 6/4$143
jue. 7/1112:20 pmAUS - YYC
1 stop11h 10mAir Canada
Deal found 6/5$145

Find flights from Austin to Calgary within your budget

Customize your flight search to find flights from Austin to Calgary that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$251 - $403

Route

Depart

Return

Price

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

mar. 7/23

1 stop8h 34m

Calgary

mar. 7/30

1 stop20h 13m

$251

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

mié. 7/31

1 stop8h 34m

Calgary

lun. 8/5

1 stop20h 13m

$261

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

mar. 7/30

1 stop8h 34m

Calgary

mar. 8/6

1 stop20h 13m

$263

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

dom. 8/18

Nonstop4h 05m

Calgary

dom. 8/25

Nonstop4h 00m

$293

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

dom. 8/25

Nonstop4h 05m

Calgary

dom. 9/1

Nonstop4h 00m

$300

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

mié. 7/17

1 stop8h 42m

Calgary

lun. 7/22

1 stop7h 32m

$303

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

mar. 7/16

1 stop13h 15m

Calgary

lun. 7/22

1 stop15h 18m

$317

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

jue. 8/15

1 stop10h 25m

Calgary

vie. 8/23

1 stop8h 02m

$336

Austin BergstromCalgary

AUS - YYC

AUSYYC

Austin Bergstrom

lun. 9/9

1 stop16h 51m

Calgary

mié. 9/18

1 stop9h 44m

$403

Flights are sorted by cheapest first

Deals found on 6/6

How far ahead should I book a flight from Austin to Calgary?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Calgary. Price data was last updated on May 31, 2024.
The best time to book flights from Austin to Calgary is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from Austin to Calgary?

Use this chart to determine the cheapest time to fly round-trip from Austin to Calgary. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Austin to Calgary flight should consider departing on Friday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Austin to Calgary

Have a flexible travel schedule? Discover the best time to fly to Calgary from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Calgary by month

Plan your trip to Calgary by taking into account the average temperature and rainfall totals by month.

YYC

Temperature

19.4 - 62.6 °F

If weather is an important factor for your trip to Calgary, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 19.4 F).

Reviews of airlines servicing Calgary

Get insights into the airlines that provide service to Calgary. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Calgary. Reviews last updated junio 6, 2024.
Read reviews from past customers who have flown WestJet, Air Canada and American Airlines from Austin to Calgary. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,222 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,222 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,368 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

WestJet
7.5
Good
2,856 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,696 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
14,227 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Crew

8.6

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Food

7.3

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Austin to Calgary. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Austin to Calgary for under $300 on Cheapflights?

    Yes, there are multiple flights from Austin to Calgary for under $300. The cheapest flight booked recently is on Multiple Airlines for just $251, but on average you can expect to pay $286.

  • Are there nonstop flights from Austin to Calgary for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Austin to Calgary under $300. A good price for a nonstop flight from Austin to Calgary is less than $468.

  • Are there last-minute flights available from Austin to Calgary for under $400?

    There are currently 20+ open flights from Austin to Calgary within the next 7 days for less than $400.

  • How popular is this Austin to Calgary flight route?

    This flight path from Austin Bergstrom to Calgary was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Austin to Calgary round-trip?

    According to our current data, WestJet ($293), Air Canada ($303), and United Airlines ($317) offers the cheapest pricing from Austin to Calgary. Users have found that WestJet is 34% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Austin to Calgary one-way?

    The cheapest airlines for a one-way flight from Austin to Calgary are WestJet ($117), Air Canada ($128), and American Airlines ($143).

  • What are the cheapest flights from Austin to Calgary?

    Looking at all options, your cheapest flight can be booked for $139. While the most popular route (Austin Bergstrom - Calgary) can be booked for $267 on average our data indicates $296 when flying from Austin to Calgary.

  • What does AUS to YYC mean?

    Austin Bergstrom Airport is AUS and Calgary Airport is YYC. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Austin to Calgary that include extra baggage allowance?

    The amount of baggage you can bring on your Austin to Calgary flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Austin to Calgary with specific airlines?

    Yes, Cheapflights allows you to browse and filter Austin to Calgary flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Austin to Calgary that include hotel bookings?

    Yes. In addition to deals on Austin to Calgary flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Calgary?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Calgary.

  • Can I find deals for business class flights from Austin to Calgary?

    Yes. Cheapflights offers flight deals from Austin to Calgary by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Austin to Calgary that allow pets onboard?

    Many airlines flying from Austin to Calgary offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Austin to Calgary?

    Yes, you can often find last-minute deals on Austin to Calgary flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Austin to Calgary flight deals updated?

    The Austin to Calgary flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from Austin to Calgary?

    When booking a flight from Austin to Calgary, you may want to consider flying on American Airlines, Air Canada or Delta as they are the most popular for this route.

  • What is the cheapest month to book a flight from Austin to Calgary?

    Currently, January is the cheapest month in which you can book a flight from Austin to Calgary (average of $309). Flying from Austin to Calgary in March is currently the most expensive (average of $438). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Austin to Calgary
See prices for flight routes from nearby airports that may be better suited for you.

Hobby to Calgary flights
Dallas/Fort Worth to Calgary flights
George Bush Intcntl to Calgary flights
Love Field to Calgary flights
Dallas/Fort Worth to Edmonton flights
San Antonio to Calgary flights
Love Field to Edmonton flights
George Bush Intcntl to Edmonton flights
Austin to Edmonton flights
San Antonio to Edmonton flights
McAllen to Calgary flights
Hobby to Fort McMurray flights
Brownsville to Calgary flights
Dallas/Fort Worth to Grande Prairie flights
College Station to Calgary flights
Harlingen to Calgary flights

Top 5 airlines flying from Austin to Calgary

Discover the top 5 airlines that operate flights from Austin to Calgary. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated junio 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$121Average$303FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$133Average$594FlexibilityNo cancel feeOn-time69%
WestJetCheapest$229Average$426FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$263Average$539FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$425FlexibilityNo cancel feeOn-timeN/A
Phoenix to Los Angeles flights
Austin to Cancún flights
Boston to Rome flights
Tampa to Las Vegas flights
New York to Buffalo flights
Cleveland to New York flights
Portland to Denver flights
Tampa to Denver flights
San Francisco to London flights
Dallas to Tampa flights
New York to Canada flights
Austin to Victoria flights

Search flights from Austin to Calgary by cabin class

Find flights from Austin to Calgary, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Austin to Calgary

Find hourly flight availability from Austin to Calgary. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 6, 2024.
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Gaziantep
Flights to Miyakojima Hirara
Flights to Figari-Sud Corse
Flights to Mason City
Flights to Komatsu
Flights to Sendai
Flights to Rhinelander Oneida County
Flights to Constanţa Mihail Kogalniceanu
Flights to Brainerd Crow Wing County
Flights to Reus
Flights to Virac
Flights to Neiva La Marguita
Flights to Pellston Emmet County
Flights to Urumqi
Flights to Bastia Poretta
Flights to Samos
Flights to Hyannis Barnstable
Flights to Provincetown
Flights to Alghero-Fertilia
Flights to Laayoune Hassan I
Flights to Devils Lake
Flights to Vava'u Lupepau'U
Flights to Hakodate
Flights to Edremit/Korfez
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines