HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Vienna (VIE) to Oregon from $494

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 6/24. 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.
VIE — PDX
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

How far in advance should I book a flight from Vienna to Oregon?

Users have found that booking a flight from Vienna to Oregon at least 56 days early can save you up to 57% on average compared to booking a flight this week. If booking 56 days before your flight isn’t an option for you, users have found flights from Vienna to Oregon for as little as $813 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 $1,141 for flights departing within the next 3 days.

What is the cheapest month to fly from Vienna to Oregon?

Flights from Vienna to Oregon lean towards being more expensive in August. Prices are generally better when you fly from Vienna to Oregon in January, with the cheapest ticket starting at $626.

When is the cheapest time to fly from Vienna to Oregon (VIE - OR)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Vienna to Oregon as you normally would.

Cheap Delta flights from Vienna to Oregon

Explore cheap flight options specifically provided by Delta for the route between Vienna and Oregon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the cheapest Delta flights we've come across from Vienna to Oregon. It's recommended that users confirm their flight details before booking.
Sun 9/86:55 amVIE - PDX
1 stop14h 10mDelta
Sat 9/286:15 amPDX - VIE
2 stops20h 20mDelta
Deal found 5/15$717
Fri 8/306:55 amVIE - PDX
2 stops18h 12mDelta
Mon 9/91:20 pmPDX - VIE
2 stops18h 40mDelta
Deal found 5/15$723
Sun 9/16:55 amVIE - PDX
2 stops18h 12mDelta
Sun 9/222:20 pmPDX - VIE
2 stops17h 40mDelta
Deal found 5/15$747
Mon 8/266:55 amVIE - PDX
2 stops21h 13mDelta
Mon 9/237:00 amPDX - VIE
2 stops21h 35mDelta
Deal found 5/16$749
Sun 9/86:55 amVIE - PDX
2 stops18h 07mDelta
Sat 9/286:15 amPDX - VIE
2 stops20h 20mDelta
Deal found 5/15$778
Sat 9/146:55 amVIE - BOI
2 stops23h 07mDelta
Fri 9/271:15 pmBOI - VIE
2 stops21h 50mDelta
Deal found 5/15$802
Sat 9/146:55 amVIE - BOI
2 stops23h 07mDelta
Fri 9/271:15 pmBOI - VIE
2 stops16h 20mDelta
Deal found 5/16$805

Cheap KLM flights from Vienna to Oregon

Explore cheap flight options specifically provided by KLM for the route between Vienna and Oregon. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Some of the lowest-priced KLM flights we've found at this time heading from Vienna to Oregon. Make sure to examine the flight information before completing your reservation.
Sun 9/87:55 pmVIE - PDX
1 stop25h 10mKLM
Sun 9/292:20 pmPDX - VIE
1 stop14h 15mKLM
Deal found 5/15$722
Sun 9/16:55 amVIE - PDX
2 stops18h 12mKLM
Sun 9/222:20 pmPDX - VIE
1 stop14h 15mKLM
Deal found 5/15$728
Mon 8/266:55 amVIE - PDX
1 stop14h 00mKLM
Mon 9/2311:28 amPDX - VIE
2 stops17h 07mKLM
Deal found 5/16$736
Fri 8/307:55 pmVIE - PDX
1 stop25h 00mKLM
Mon 9/92:20 pmPDX - VIE
1 stop23h 00mKLM
Deal found 5/15$843
Mon 8/266:55 amVIE - BOI
2 stops21h 54mKLM
Sun 9/110:40 amBOI - VIE
2 stops18h 55mKLM
Deal found 5/15$887
Thu 7/186:55 amVIE - PDX
1 stop14h 00mKLM
Sun 7/282:15 pmPDX - VIE
1 stop19h 50mKLM
Deal found 5/15$969
Thu 7/186:55 amVIE - PDX
1 stop14h 00mKLM
Sun 7/282:15 pmPDX - VIE
1 stop23h 05mKLM
Deal found 5/16$973

Cheap Vienna to Oregon flights in May & June 2024

Find cheap flight options from Vienna to Oregon specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Check out some of the best flight deals from Vienna to Oregon in 2024. Check back in a little while for more flight options.
Fri 5/178:00 amVIE - PDX
1 stop14h 25mMultiple Airlines
Fri 5/243:25 pmPDX - VIE
1 stop14h 55mMultiple Airlines
Deal found 5/16$809
Fri 5/177:00 amVIE - PDX
2 stops25h 54mAmerican Airlines
Fri 5/245:10 amPDX - VIE
2 stops27h 40mAmerican Airlines
Deal found 5/16$916
Fri 5/177:00 amVIE - PDX
2 stops38h 53mAmerican Airlines
Fri 5/247:15 pmPDX - VIE
1 stop13h 35mAmerican Airlines
Deal found 5/16$928
Sun 6/3010:30 amVIE - PDX
1 stop21h 00mAir Canada
Mon 7/811:45 pmPDX - VIE
2 stops23h 45mAir Canada
Deal found 5/15$1,098
Sun 6/3010:30 amVIE - PDX
1 stop32h 08mUnited Airlines
Mon 7/811:45 pmPDX - VIE
1 stop23h 35mUnited Airlines
Deal found 5/15$1,113
Tue 6/119:05 amVIE - BOI
2 stops16h 50mLufthansa
Thu 6/272:27 pmBOI - VIE
2 stops15h 48mLufthansa
Deal found 5/16$1,153
Sun 6/3010:30 amVIE - PDX
1 stop21h 00mUnited Airlines
Sun 7/712:15 amPDX - VIE
2 stops27h 15mUnited Airlines
Deal found 5/15$1,167
Fri 5/1710:30 amVIE - PDX
2 stops32h 32mUnited Airlines
Thu 5/2312:15 amPDX - VIE
1 stop23h 05mUnited Airlines
Deal found 5/16$1,172
Sun 6/302:30 pmVIE - PDX
2 stops39h 45mSWISS
Mon 7/87:00 amPDX - VIE
2 stops24h 25mSWISS
Deal found 5/15$1,180

Vienna to Oregon 2024 flight deals

Discover exclusive flight deals for travel between Vienna and Oregon in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the best flight deals from Vienna to Oregon in 2024. Check back in a little while for more flight options.
Sun 9/86:55 amVIE - PDX
1 stop14h 10mDelta
Sat 9/286:15 amPDX - VIE
2 stops20h 20mDelta
Deal found 5/15$717
Sun 9/18:00 amVIE - PDX
1 stop14h 50mMultiple Airlines
Sun 9/224:25 pmPDX - VIE
1 stop12h 50mMultiple Airlines
Deal found 5/15$720
Sun 9/87:55 pmVIE - PDX
1 stop25h 10mKLM
Sun 9/292:20 pmPDX - VIE
1 stop14h 15mKLM
Deal found 5/15$722
Fri 8/306:55 amVIE - PDX
2 stops18h 12mDelta
Mon 9/91:20 pmPDX - VIE
2 stops18h 40mDelta
Deal found 5/15$723
Sun 9/16:55 amVIE - PDX
2 stops18h 12mKLM
Sun 9/222:20 pmPDX - VIE
1 stop14h 15mKLM
Deal found 5/15$728
Mon 8/266:55 amVIE - PDX
1 stop14h 00mKLM
Mon 9/2311:28 amPDX - VIE
2 stops17h 07mKLM
Deal found 5/16$736
Sun 9/16:55 amVIE - PDX
2 stops18h 12mDelta
Sun 9/222:20 pmPDX - VIE
2 stops17h 40mDelta
Deal found 5/15$747
Mon 8/266:55 amVIE - PDX
2 stops21h 13mDelta
Mon 9/237:00 amPDX - VIE
2 stops21h 35mDelta
Deal found 5/16$749
Sun 9/89:25 amVIE - PDX
2 stops21h 13mUnited Airlines
Sun 9/297:50 pmPDX - VIE
2 stops31h 30mUnited Airlines
Deal found 5/15$777

One-way flights to Oregon from Vienna

Search for one-way flight options from Vienna to Oregon. 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 2,637,452 searches. Data last updated May 16, 2024.
Users traveling one-way from Vienna to Oregon can select one of these great deals. Users needing a return flight from Vienna to Oregon should utilize the search form above.
Mon 6/245:20 pmVIE - PDX
3 stops52h 49mMultiple Airlines
Deal found 5/15$494
Mon 6/248:35 pmVIE - PDX
2 stops51h 45mMultiple Airlines
Deal found 5/15$514
Wed 10/210:55 amVIE - PDX
2 stops32h 23mMultiple Airlines
Deal found 5/15$529
Wed 10/210:55 amVIE - PDX
2 stops32h 23mMultiple Airlines
Deal found 5/16$531
Wed 10/28:45 pmVIE - PDX
3 stops32h 02mMultiple Airlines
Deal found 5/16$560
Wed 10/29:35 pmVIE - PDX
3 stops45h 43mMultiple Airlines
Deal found 5/15$576
Tue 7/165:10 pmVIE - PDX
3 stops38h 43mMultiple Airlines
Deal found 5/16$577
Sun 7/216:00 amVIE - PDX
3 stops59h 50mMultiple Airlines
Deal found 5/16$612
Thu 7/49:00 amVIE - PDX
3 stops37h 09mMultiple Airlines
Deal found 5/16$622

Find flights from Vienna to Oregon within your budget

Customize your flight search to find flights from Vienna to Oregon 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$717 - $1,081

Route

Depart

Return

Price

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Sun 9/8

1 stop14h 10m

Portland

Sat 9/28

2 stops20h 20m

$717

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Sun 9/1

1 stop14h 50m

Portland

Sun 9/22

1 stop12h 50m

$720

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Sun 9/8

1 stop25h 10m

Portland

Sun 9/29

1 stop14h 15m

$722

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Sun 9/8

2 stops21h 13m

Portland

Sun 9/29

2 stops31h 30m

$777

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Thu 7/25

2 stops35h 01m

Portland

Mon 8/5

2 stops28h 35m

$783

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Thu 7/18

2 stops39h 14m

Portland

Sun 7/28

2 stops24h 29m

$907

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Thu 7/25

1 stop32h 08m

Portland

Mon 8/5

1 stop23h 50m

$1,002

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Thu 8/1

1 stop18h 50m

Portland

Sun 8/11

1 stop18h 25m

$1,034

Vienna IntlPortland

VIE - PDX

VIEPDX

Vienna Intl

Thu 7/25

1 stop21h 00m

Portland

Sun 8/4

2 stops28h 30m

$1,081

Flights are sorted by cheapest first

Deals found on 5/15

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Oregon

Get insights into the airlines that provide service to Oregon. 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 Oregon. Reviews last updated May 16, 2024.
Peruse reviews from past customers who have flown with Delta, KLM and United Airlines from Vienna to Oregon to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,568 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

SWISS
7.8
Good
1,994 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Austrian Airlines
7.7
Good
1,053 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,924 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

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

  • What airport do you fly from for flights from Vienna to Oregon?

    For a flight from Vienna to Oregon, you will be flying from Vienna Intl. Vienna Intl (VIE) is just 11.1 mi from the center of the city.

  • Can I find flights from Vienna to Oregon for under $800 on Cheapflights?

    Yes, there are multiple flights from Vienna to Oregon for under $800. The cheapest flight booked recently is on Delta for just $717, but on average you can expect to pay $778.

  • What are the cheapest airlines to fly from Vienna to Oregon one-way?

    The cheapest airline one-way is KLM, with whom users have recently found tickets for as low as $754. However, be on the lookout for offers from British Airways and United Airlines, as they are both options that can get you from Vienna to Oregon for a low price.

  • What are the most popular airlines that fly from Vienna to Oregon?

    Consider British Airways, Delta or KLM when booking your flight. These represent the most popular airlines when flying from Vienna to Oregon.

  • What does VIE to PDX mean?

    Great question - VIE to PDX just means Vienna Intl Airport to Portland Airport. Now you’ll know what these unique codes when you look for flights! Ready for more IATA code knowledge? These are related airports for your current travel destination: Eugene Airport (EUG), Bend/Redmond Airport (RDM), Medford Airport (MFR), North Bend Airport (OTH), Pendleton Airport (PDT).

  • Can I find deals for flights from Vienna to Oregon that include extra baggage allowance?

    The amount of baggage you can bring on your Vienna to Oregon 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 Vienna to Oregon with specific airlines?

    Yes, Cheapflights allows you to browse and filter Vienna to Oregon 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 Vienna to Oregon that include hotel bookings?

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

  • How can I find direct flights from Vienna to Oregon?

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

  • Can I find deals for business class flights from Vienna to Oregon?

    Yes. Cheapflights offers flight deals from Vienna to Oregon 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 Vienna to Oregon that allow pets onboard?

    Many airlines flying from Vienna to Oregon 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 Vienna to Oregon?

    Yes, you can often find last-minute deals on Vienna to Oregon 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 Vienna to Oregon flight deals updated?

    The Vienna to Oregon flight deals you see on this page were last updated on 5/16.

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 Vienna to Oregon
See prices for flight routes from nearby airports that may be better suited for you.

Vienna to Newark flights
Vienna to John F Kennedy Intl flights
Vienna to Los Angeles flights
Vienna to LaGuardia flights
Vienna to O'Hare Intl flights
Vienna to Miami flights
Vienna to Dulles Intl flights
Vienna to Boston flights
Vienna to San Francisco flights
Vienna to Honolulu flights
Vienna to Las Vegas flights
Vienna to Reagan-National flights
Vienna to Baltimore flights
Vienna to Oakland flights
Vienna to Seattle flights
Vienna to Orlando flights
Vienna to Dallas/Fort Worth flights
Vienna to Stewart flights
Graz to John F Kennedy Intl flights
Vienna to Atlanta flights
Vienna to Love Field flights
Vienna to Denver flights
Vienna to Tampa flights
Vienna to Salt Lake City flights
Graz to Newark flights
Vienna to San Diego flights
Salzburg to John F Kennedy Intl flights
Vienna to Hobby flights
Vienna to Detroit flights
Vienna to Minneapolis flights
Vienna to Pittsburgh flights
Graz to San Francisco flights
Salzburg to Newark flights
Vienna to Portland flights
Vienna to George Bush Intcntl flights
Vienna to Fort Myers flights
Vienna to Charlotte flights
Graz to Seattle flights
Vienna to Sky Harbor Intl flights
Vienna to Austin flights
Graz to Las Vegas flights
Innsbruck to John F Kennedy Intl flights
Vienna to Fort Lauderdale flights
Vienna to Raleigh flights
Vienna to Lihue flights

Top 3 airlines flying from Vienna to Oregon

Discover the top 3 airlines that operate flights from Vienna to Oregon. 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$749Average$874FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest$770Average$866FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest$773Average$932FlexibilityNo cancel feeOn-time75%
Search KLM flights
Chicago to Tampa flights
Los Angeles to Incheon Intl Airport flights
USA to Vietnam flights
USA to Bangkok flights
Boston to London flights
Houston to Monterrey flights
Newark Airport to Las Vegas flights
Fort Lauderdale to Las Vegas flights
Dallas to Paris flights
New York to Florida flights
Dallas to San Diego flights
Vienna to Pennsylvania flights

Search flights from Vienna to Oregon by cabin class

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

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 Montes Claros
Flights to Girona Costa Brava
Flights to Naxos
Flights to Bourgas
Flights to Hyannis Barnstable
Flights to Samos
Flights to Reggio Calabria Tito Menniti
Flights to Devils Lake
Flights to Ningbo Lishe Intl
Flights to Pellston Emmet County
Flights to Provincetown
Flights to Cortez Montezuma County
Flights to Ohrid
Flights to Oran Es Senia
Flights to Menorca/Mahon
Flights to Hakodate
Flights to Ordu/Giresun
Flights to Laayoune Hassan I
Flights to Cornwall Newquay
Flights to Melilla
Flights to Rennes St Jacques
Flights to Parikia Paros
Flights to Constanţa Mihail Kogalniceanu
Flights to Miyakojima Hirara

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Vienna to Oregon?

When you search for this flight from Vienna to Oregon, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Vienna to Oregon?

Cheapflights helps you find that perfect flight to Oregon from Vienna by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Vienna to Oregon with no change fees?

Yes! Cheapflights helps users easily find flights from Vienna to Oregon with no change fees.

Can Cheapflights notify me if prices for flights from Vienna to Oregon become cheaper?

Yes! Start tracking prices for Vienna to Oregon flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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