HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Denver (DEN) to Nassau (NAS) from $149

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 8/11. 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.
DEN — NAS
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Denver Intl to Nassau Intl are usually found in April or February, booked 46 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Denver to Nassau

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Nassau (NAS). 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 June 6, 2024.

Popular in

November

Cheapest in

April

Round-trip from

$365

One-way from

$194
High demand for flights, 16% potential price rise
Search Deals
Best time to find cheap flights, 36% potential price drop
Search Deals
From Denver Intl to Nassau Intl
Search Deals
One-way flight from Denver Intl to Nassau Intl
Search Deals

What is the cheapest day to fly round-trip from Denver to Nassau?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 31% when planning your travel around this day of the week.

How far in advance should I book a flight from Denver to Nassau?

Travelers have found it’s best to book a flight 47 days in advance to save up to 4% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 47 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Denver to Nassau 1-2 weeks in advance for as low as $417, or $417 for flights within the next 24 hours.

What is the cheapest month to fly from Denver to Nassau?

The best pricing can be found in the month of April. Prices to Nassau from Denver average $644. You can even find prices in April for less than $644, as users have found deals to Nassau from as low as $394. The month of November appears to be one of the more expensive times to travel to Nassau from Denver. Flying in the targeted month can save you up to 19%.

What is the cheapest time of day to fly from DEN to NAS?

It’s optimal to fly from Denver to Nassau in the afternoon. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight at noon.

Cheap Denver to Nassau flights in June & July 2024

Find cheap flight options from Denver to Nassau 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 June 6, 2024.
These are some of the most attractive deals on flights from Denver to Nassau in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 6/2712:55 amDEN - NAS
1 stop14h 07mDelta
Wed 7/32:20 pmNAS - DEN
1 stop10h 34mDelta
Deal found 6/5$411
Tue 7/3011:59 pmDEN - NAS
2 stops11h 15mAmerican Airlines
Tue 8/610:24 amNAS - DEN
2 stops11h 41mAmerican Airlines
Deal found 6/5$416
Tue 7/212:55 amDEN - NAS
1 stop17h 59mAmerican Airlines
Wed 7/102:18 pmNAS - DEN
1 stop11h 31mAmerican Airlines
Deal found 6/5$424
Thu 7/46:54 amDEN - NAS
1 stop24h 41mAmerican Airlines
Mon 7/86:45 pmNAS - DEN
1 stop18h 46mAmerican Airlines
Deal found 6/5$434
Tue 7/2312:35 amDEN - NAS
2 stops12h 08mDelta
Tue 7/306:13 pmNAS - DEN
1 stop18h 45mDelta
Deal found 6/6$440
Wed 6/1211:46 pmDEN - NAS
1 stop18h 29mMultiple Airlines
Wed 6/194:15 pmNAS - DEN
1 stop8h 58mMultiple Airlines
Deal found 6/5$468
Wed 7/1012:55 amDEN - NAS
1 stop10h 19mAmerican Airlines
Mon 7/151:29 pmNAS - DEN
1 stop10h 27mAmerican Airlines
Deal found 6/5$477
Thu 6/276:08 amDEN - NAS
2 stops12h 46mAmerican Airlines
Thu 7/410:33 amNAS - DEN
2 stops13h 20mAmerican Airlines
Deal found 6/5$482
Tue 7/212:55 amDEN - NAS
1 stop17h 59mAmerican Airlines
Mon 7/810:35 amNAS - DEN
1 stop13h 57mAmerican Airlines
Deal found 6/5$490

Denver to Nassau 2024 flight deals

Discover exclusive flight deals for travel between Denver and Nassau in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
These are some of the most attractive deals on flights from Denver to Nassau in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Wed 8/216:36 pmDEN - NAS
1 stop23h 34mMultiple Airlines
Sun 8/255:30 pmNAS - DEN
1 stop26h 01mMultiple Airlines
Deal found 6/5$400
Sat 8/109:52 amDEN - NAS
Nonstop4h 18mUnited Airlines
Fri 8/164:55 pmNAS - DEN
1 stop8h 51mUnited Airlines
Deal found 6/5$407
Sat 9/145:13 pmDEN - NAS
1 stop16h 37mMultiple Airlines
Fri 9/207:45 amNAS - DEN
1 stop11h 46mMultiple Airlines
Deal found 6/6$408
Wed 9/412:55 amDEN - NAS
1 stop8h 25mAmerican Airlines
Fri 9/1310:50 amNAS - DEN
1 stop14h 33mAmerican Airlines
Deal found 6/5$411
Wed 9/412:55 amDEN - NAS
1 stop8h 25mAmerican Airlines
Sat 9/1410:50 amNAS - DEN
2 stops12h 57mAmerican Airlines
Deal found 6/5$416
Tue 7/212:55 amDEN - NAS
1 stop17h 59mAmerican Airlines
Wed 7/102:18 pmNAS - DEN
1 stop11h 31mAmerican Airlines
Deal found 6/5$424
Thu 9/53:03 pmDEN - NAS
1 stop21h 18mAmerican Airlines
Wed 9/112:35 pmNAS - DEN
2 stops9h 32mAmerican Airlines
Deal found 6/5$428
Thu 7/46:54 amDEN - NAS
1 stop24h 41mAmerican Airlines
Mon 7/86:45 pmNAS - DEN
1 stop18h 46mAmerican Airlines
Deal found 6/5$434
Tue 7/2312:35 amDEN - NAS
2 stops12h 08mDelta
Tue 7/306:13 pmNAS - DEN
1 stop18h 45mDelta
Deal found 6/6$440

Denver to Nassau flights leaving soon

Find last-minute flight options from Denver to Nassau 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 June 6, 2024.
Consider one of these great deals we found on last-minute flights from Denver to Nassau. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 6/1211:46 pmDEN - NAS
1 stop18h 29mMultiple Airlines
Wed 6/194:15 pmNAS - DEN
1 stop8h 58mMultiple Airlines
Deal found 6/5$468
Wed 6/126:59 pmDEN - NAS
1 stop13h 31mMultiple Airlines
Wed 6/197:15 amNAS - DEN
2 stops17h 58mMultiple Airlines
Deal found 6/5$498
Sat 6/1511:59 pmDEN - NAS
1 stop12h 21mJetBlue
Tue 6/1811:25 amNAS - DEN
1 stop13h 39mJetBlue
Deal found 6/5$518
Sat 6/1511:59 pmDEN - NAS
2 stops12h 51mMultiple Airlines
Tue 6/185:30 pmNAS - DEN
1 stop18h 30mMultiple Airlines
Deal found 6/5$595
Sat 6/1510:22 amDEN - NAS
3 stops22h 08mMultiple Airlines
Tue 6/1812:30 pmNAS - DEN
1 stop23h 26mMultiple Airlines
Deal found 6/5$621
Tue 6/1112:49 amDEN - NAS
1 stop13h 36mMultiple Airlines
Wed 6/194:15 pmNAS - DEN
1 stop8h 58mMultiple Airlines
Deal found 6/5$630
Fri 6/1412:59 amDEN - NAS
2 stops14h 41mMultiple Airlines
Tue 6/185:30 pmNAS - DEN
1 stop18h 30mMultiple Airlines
Deal found 6/5$643
Fri 6/1412:48 amDEN - NAS
1 stop13h 37mMultiple Airlines
Tue 6/185:30 pmNAS - DEN
1 stop18h 30mMultiple Airlines
Deal found 6/5$649
Tue 6/1112:40 amDEN - NAS
2 stops12h 00mDelta
Wed 6/196:27 pmNAS - DEN
1 stop18h 01mDelta
Deal found 6/5$694

One-way flights to Nassau from Denver

Search for one-way flight options from Denver to Nassau. 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 June 6, 2024.
Some of the best available deals we've found on one-way flights from Denver to Nassau. For those needing a return trip from Denver, there is a search form available above.
Sun 8/1110:20 pmDEN - NAS
1 stop11h 05mCopa Airlines
Deal found 6/6$149
Tue 9/2411:59 pmDEN - NAS
1 stop10h 46mDelta
Deal found 6/6$152
Sun 8/1111:59 pmDEN - NAS
2 stops12h 51mMultiple Airlines
Deal found 6/6$184
Thu 10/36:00 amDEN - NAS
2 stops27h 25mCopa Airlines
Deal found 6/5$194
Sat 6/1511:59 pmDEN - NAS
1 stop15h 22mJetBlue
Deal found 6/6$206
Sat 8/1012:55 amDEN - NAS
1 stop7h 38mAmerican Airlines
Deal found 6/6$218
Fri 10/115:38 pmDEN - NAS
2 stops24h 12mAlaska Airlines
Deal found 6/4$232
Fri 10/113:43 pmDEN - NAS
1 stop17h 27mAmerican Airlines
Deal found 6/4$241
Thu 10/1012:55 amDEN - NAS
1 stop10h 23mDelta
Deal found 6/4$250

Find flights from Denver to Nassau within your budget

Customize your flight search to find flights from Denver to Nassau 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 June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$400 - $833

Route

Depart

Return

Price

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Wed 8/21

1 stop23h 34m

Nassau Intl

Sun 8/25

1 stop26h 01m

$400

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Sat 8/10

Nonstop4h 18m

Nassau Intl

Fri 8/16

1 stop8h 51m

$407

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Sat 9/14

1 stop16h 37m

Nassau Intl

Fri 9/20

1 stop11h 46m

$408

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Wed 9/4

1 stop8h 25m

Nassau Intl

Fri 9/13

1 stop14h 33m

$411

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Wed 9/4

1 stop8h 25m

Nassau Intl

Sat 9/14

2 stops12h 57m

$416

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Tue 7/2

1 stop17h 59m

Nassau Intl

Wed 7/10

1 stop11h 31m

$424

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Tue 7/23

2 stops12h 08m

Nassau Intl

Tue 7/30

1 stop18h 45m

$440

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Sat 10/12

1 stop9h 38m

Nassau Intl

Sat 10/19

1 stop12h 19m

$474

Denver IntlNassau Intl

DEN - NAS

DENNAS

Denver Intl

Mon 11/25

1 stop21h 50m

Nassau Intl

Sat 11/30

1 stop9h 34m

$833

Flights are sorted by cheapest first

Deals found on 6/5

How far ahead should I book a flight from Denver to Nassau?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Nassau. Price data was last updated on May 31, 2024.
The price you pay for your flight from Denver to Nassau may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

What is the cheapest day to fly from Denver to Nassau?

Use this chart to determine the cheapest time to fly round-trip from Denver to Nassau. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Denver to Nassau flight should consider departing on Friday afternoons when fares are most often at their lowest. Wednesday evenings 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 Denver to Nassau

Have a flexible travel schedule? Discover the best time to fly to Nassau from Denver 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 Nassau by month

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

NAS

Temperature

69.8 - 82.4 °F

If weather is an important factor for your trip to Nassau, 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 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Nassau

Get insights into the airlines that provide service to Nassau. 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 Nassau. Reviews last updated June 6, 2024.
See what other customers who have flown with JetBlue, American Airlines and United Airlines from Denver to Nassau have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

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

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

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

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

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

Copa Airlines
8.0
Very good
2,561 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

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

JetBlue
7.6
Good
4,316 reviews
Alaska Airlines
8.1
Very good
9,222 reviews

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

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

Entertainment

7.3

Crew

8.6

Overall

8.1

Food

7.3

Boarding

8.2

Comfort

7.9

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 Denver to Nassau. 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 Denver to Nassau for under $400 on Cheapflights?

    Yes, there are multiple flights from Denver to Nassau for under $400. The cheapest flight booked recently is on Multiple Airlines for just $400, but on average you can expect to pay $460.

  • Are there nonstop flights from Denver to Nassau for under $2,300 on Cheapflights?

    Cheapflights has at least 2 direct flights from Denver to Nassau under $2,300. A good price for a nonstop flight from Denver to Nassau is less than $2,555.

  • Are there last-minute flights available from Denver to Nassau for under $500?

    There are currently 20+ open flights from Denver to Nassau within the next 7 days for less than $500.

  • How popular is this Denver to Nassau flight route?

    Flights from Denver Intl to Nassau Intl have been viewed 2 times in the past calendar month.

  • What are the cheapest airlines flying from Denver to Nassau round-trip?

    United Airlines, at $407, was found to be the cheapest airline from Denver to Nassau.Alternate airlines to your destination round-trip include American Airlines and Delta. United Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Denver to Nassau one-way?

    $149 is the cheapest one-way deal found within the past few days, from Copa Airlines. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from $152 and $206, respectively.

  • What are the cheapest flights from Denver to Nassau?

    While on average a flight from Denver to Nassau is generally $343, our data shows the cheapest flight currently is $147. When looking at the most popular route, (Denver Intl - Nassau Intl), you can expect to pay $400 for that flight.

  • What does DEN to NAS mean?

    Great question - DEN to NAS just means Denver Intl Airport to Nassau Intl Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Denver to Nassau that include extra baggage allowance?

    The amount of baggage you can bring on your Denver to Nassau 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 Denver to Nassau with specific airlines?

    Yes, Cheapflights allows you to browse and filter Denver to Nassau 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 Denver to Nassau that include hotel bookings?

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

  • How can I find direct flights from Denver to Nassau?

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

  • Can I find deals for business class flights from Denver to Nassau?

    Yes. Cheapflights offers flight deals from Denver to Nassau 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 Denver to Nassau that allow pets onboard?

    Many airlines flying from Denver to Nassau 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 Denver to Nassau?

    Yes, you can often find last-minute deals on Denver to Nassau 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 Denver to Nassau flight deals updated?

    The Denver to Nassau flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from Denver to Nassau?

    Before booking your flight from Denver to Nassau check out the most popular airlines for this route: American Airlines, JetBlue or Delta.

  • What is the cheapest month to book a flight from Denver to Nassau?

    Currently, January is the cheapest month in which you can book a flight from Denver to Nassau (average of $365). Flying from Denver to Nassau in June is currently the most expensive (average of $458). 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 Denver to Nassau
See prices for flight routes from nearby airports that may be better suited for you.

Denver to Gregory Town flights
Denver to Georgetown flights
Denver to Freeport flights
Colorado Springs to Nassau flights
Denver to Governor’s Harbour flights
Denver to Marsh Harbour flights
Colorado Springs to Georgetown flights
Colorado Springs to Marsh Harbour flights
Colorado Springs to Gregory Town flights
Colorado Springs to Freeport flights
Denver to Port Royal flights
Denver to Deadman's Cay flights
Denver to Treasure Cay flights

Top 6 airlines flying from Denver to Nassau

Discover the top 6 airlines that operate flights from Denver to Nassau. 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 June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$294Average$367FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$396Average$657FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$401Average$578FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$405Average$709FlexibilityNo cancel feeOn-time71%
DeltaCheapest$406Average$495FlexibilityNo cancel feeOn-timeN/A
Linear Air TaxiCheapest$29,662Average$79,085FlexibilityNo cancel feeOn-timeN/A
Los Angeles to Seoul flights
New Orleans to Las Vegas flights
El Paso to Dallas flights
Salt Lake City to Phoenix flights
Memphis to Orlando flights
Los Angeles to Chicago O'Hare Intl Airport flights
Seattle to Atlanta flights
Newark Airport to San Juan flights
Philadelphia to Orlando flights
Los Angeles to Maui flights
USA to Japan flights
Denver to Nairobi flights

Search flights from Denver to Nassau by cabin class

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

Weekly flight availability from Denver to Nassau

Explore weekly flight availability from Denver to Nassau. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 6, 2024.
Sunday0daily flights
Monday0daily flights
Tuesday0daily flights
Wednesday0daily flights
Thursday0daily flights
Friday0daily flights
Saturday1daily flight

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