What are the cheapest airlines to fly from Atlanta to Big Sky one-way?

The cheapest airlines for a one-way flight from Atlanta to Big Sky are Hawaiian Airlines ($166), Southwest ($185), and Alaska Airlines ($193).

In terms of precipitation, rainfall in Big Sky ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Big Sky when rainfall is around 0.4 in.

If weather is an important factor for your trip to Big Sky, 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 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

What are the cheapest flights from Atlanta to Big Sky?

The cheapest flight price from Atlanta to Big Sky is $453. On average you can expect to pay $694. The most popular route, (Atlanta Hartsfield-Jackson - Bozeman Gallatin Field), can usually be booked for $270.

What are the most popular airlines that fly from Atlanta to Big Sky?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Atlanta to Big Sky.

How far in advance should I book a flight from Atlanta to Big Sky?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 59 days in advance, which can save you up to 106% on flights from Atlanta to Big Sky compared to booking the week you need them. Waiting 59 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $765. For sooner than that we have options available in the next 3 days from $909.

What is the cheapest month to fly from Atlanta to Big Sky?

Our data shows that November tends to be the cheapest month to fly to Big Sky from Atlanta. Users have commonly found prices around $634 for the month, but tickets can be as low as $330. Due to multiple factors, prepare for potentially higher prices in January.

What airport do you fly from for flights from Atlanta to Big Sky?

Atlanta Hartsfield-Jackson (ATL) is the airport you will fly out of if you book a flight from Atlanta to Big Sky. You should not have trouble finding flights to Big Sky from Hartsfield-Jackson; the airport handles an average of 1 outbound flight to Big Sky per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Atlanta airport to Big Sky. It is only a 8.2 mi journey to Hartsfield-Jackson (ATL) from Atlanta’s city center.

Can I find deals for flights from Atlanta to Big Sky that include hotel bookings?

Yes. In addition to deals on Atlanta to Big Sky flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Atlanta to Big Sky?

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

Can I find deals for business class flights from Atlanta to Big Sky?

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

$145+ Flights from Atlanta to Big Sky

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Atlanta to Big Sky with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Big Sky are usually found in November or October, booked 58 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Atlanta to Big Sky

Round-trip from	$384 (Mytrip)
One-way from	$145 (Mytrip)
Popular in	January
Cheapest in	November
Average price	$659

From Atlanta Hartsfield-Jackson to Big Sky

Search Deals

One-way flight from Atlanta Hartsfield-Jackson to Big Sky

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from Atlanta to Big Sky

Cheapest flights from Atlanta to Big Sky
Explore the most affordable flight options available from Atlanta to Big Sky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Sun 8/249:02 pmATL - BZN

3 stops21h 56mMultiple Airlines

Fri 8/299:32 amBZN - ATL

3 stops27h 46mMultiple Airlines

Deal found 7/29

$389

Tue 8/196:11 pmATL - BZN

1 stop8h 00mHawaiian Airlines

Sun 8/245:22 amBZN - ATL

1 stop7h 20mHawaiian Airlines

Deal found 7/28

$390

Sun 8/246:21 pmATL - BZN

1 stop7h 51mAlaska Airlines

Fri 8/297:23 pmBZN - ATL

1 stop26h 36mAlaska Airlines

Deal found 7/30

$393

Sat 8/3012:15 pmATL - BZN

1 stop6h 10mSouthwest

Sat 9/65:25 amBZN - ATL

1 stop5h 30mSouthwest

Deal found 7/27

$394

Sun 9/712:29 pmATL - BZN

1 stop8h 50mAmerican Airlines

Thu 9/117:20 amBZN - ATL

1 stop8h 13mAmerican Airlines

Deal found 7/30

$401

Best flights from Atlanta to Big Sky
Discover carefully curated flight deals from Atlanta to Big Sky that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2025.

Sun 8/249:02 pmATL - BZN

3 stops21h 56mMultiple Airlines

Fri 8/299:32 amBZN - ATL

3 stops27h 46mMultiple Airlines

Deal found 7/29

$389

Tue 8/196:11 pmATL - BZN

1 stop8h 00mHawaiian Airlines

Sun 8/245:22 amBZN - ATL

1 stop7h 20mHawaiian Airlines

Deal found 7/28

$390

Sun 8/246:21 pmATL - BZN

1 stop7h 51mAlaska Airlines

Fri 8/297:23 pmBZN - ATL

1 stop26h 36mAlaska Airlines

Deal found 7/30

$393

Sat 8/3012:15 pmATL - BZN

1 stop6h 10mSouthwest

Sat 9/65:25 amBZN - ATL

1 stop5h 30mSouthwest

Deal found 7/27

$394

Sun 9/712:29 pmATL - BZN

1 stop8h 50mAmerican Airlines

Thu 9/117:20 amBZN - ATL

1 stop8h 13mAmerican Airlines

Deal found 7/30

$401

Last-minute flights from Atlanta to Big Sky
Discover last-minute flight deals from Atlanta to Big Sky. Data last updated July 30, 2025 and is based on user searches.

Wed 8/611:06 amATL - BZN

2 stops28h 40mMultiple Airlines

Sat 8/911:34 amBZN - ATL

2 stops20h 38mMultiple Airlines

Deal found 7/29

$457

Wed 8/611:35 amATL - BZN

2 stops13h 24mUnited Airlines

Sat 8/97:00 amBZN - ATL

2 stops13h 07mUnited Airlines

Deal found 7/29

$761

Thu 8/76:30 amATL - BZN

1 stop9h 36mAlaska Airlines

Fri 8/155:30 amBZN - ATL

1 stop7h 16mAlaska Airlines

Deal found 7/29

$560

Thu 8/712:39 pmATL - BZN

1 stop8h 16mAmerican Airlines

Fri 8/1511:29 amBZN - ATL

2 stops10h 59mAmerican Airlines

Deal found 7/29

$566

Sat 8/96:30 amATL - BZN

1 stop9h 36mHawaiian Airlines

Sun 8/175:30 amBZN - ATL

1 stop7h 16mHawaiian Airlines

Deal found 7/27

$660

Sat 8/911:25 amATL - BZN

Nonstop3h 55mDelta

Sun 8/173:18 pmBZN - ATL

1 stop6h 24mDelta

Deal found 7/27

$969

Mon 8/1811:10 amATL - BZN

1 stop6h 08mAmerican Airlines

Tue 8/1911:29 amBZN - ATL

1 stop8h 26mAmerican Airlines

Deal found 7/28

$401

Tue 8/196:11 pmATL - BZN

1 stop8h 00mHawaiian Airlines

Sun 8/245:22 amBZN - ATL

1 stop7h 20mHawaiian Airlines

Deal found 7/28

$390

Sun 8/249:02 pmATL - BZN

3 stops21h 56mMultiple Airlines

Fri 8/299:32 amBZN - ATL

3 stops27h 46mMultiple Airlines

Deal found 7/29

$389

Sun 8/246:21 pmATL - BZN

1 stop7h 51mAlaska Airlines

Fri 8/297:23 pmBZN - ATL

1 stop26h 36mAlaska Airlines

Deal found 7/30

$393

Sat 8/3012:15 pmATL - BZN

1 stop6h 10mSouthwest

Sat 9/65:25 amBZN - ATL

1 stop5h 30mSouthwest

Deal found 7/27

$394

Sat 8/306:59 pmATL - BZN

2 stops16h 53mUnited Airlines

Sat 9/67:00 amBZN - ATL

2 stops12h 48mUnited Airlines

Deal found 7/30

$498

One-way flights from Atlanta to Big Sky
Search for one-way flight options from Atlanta to Big Sky. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Wed 10/152:07 pmATL - BZN

2 stops21h 10mMultiple Airlines

Deal found 7/28

$145

Wed 10/156:09 pmATL - BZN

1 stop8h 03mHawaiian Airlines

Deal found 7/28

$166

Mon 9/296:10 amATL - BZN

1 stop6h 25mSouthwest

Deal found 7/30

$185

Tue 9/306:21 pmATL - BZN

2 stops30h 17mAlaska Airlines

Deal found 7/30

$193

Wed 8/277:25 amATL - BZN

2 stops13h 16mDelta

Deal found 7/30

$233

Sun 8/316:45 amATL - BZN

2 stops11h 05mAmerican Airlines

Deal found 7/29

$236

Sat 8/306:59 pmATL - BZN

2 stops22h 15mUnited Airlines

Deal found 7/30

$264

Fly from

Fly to

Route

Depart

Return

Price

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Sun 8/24

9:02 pm-4:58 pm

3 stops21h 56m

Bozeman Gallatin Field

Fri 8/29

9:32 am-3:18 pm

3 stops27h 46m

$389

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Tue 8/19

6:11 pm-12:11 am

1 stop8h 00m

Bozeman Gallatin Field

Sun 8/24

5:22 am-2:42 pm

1 stop7h 20m

$390

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Sun 8/24

6:21 pm-12:12 am

1 stop7h 51m

Bozeman Gallatin Field

Fri 8/29

7:23 pm-11:59 pm

1 stop26h 36m

$393

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Sat 8/30

12:15 pm-4:25 pm

1 stop6h 10m

Bozeman Gallatin Field

Sat 9/6

5:25 am-12:55 pm

1 stop5h 30m

$394

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Sun 9/7

12:29 pm-7:19 pm

1 stop8h 50m

Bozeman Gallatin Field

Thu 9/11

7:20 am-5:33 pm

1 stop8h 13m

$401

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Wed 10/15

2:07 pm-9:17 am

2 stops21h 10m

$145

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Wed 10/15

6:09 pm-12:12 am

1 stop8h 03m

$166

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Mon 9/29

6:10 am-10:35 am

1 stop6h 25m

$185

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Tue 9/30

6:21 pm-10:38 pm

2 stops30h 17m

$193

AtlantaBozeman

ATL - BZN

ATLBZN

Atlanta Hartsfield-Jackson

Wed 8/27

7:25 am-6:41 pm

2 stops13h 16m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 12 results

Best time to book a flight from Atlanta to Big Sky

Have a flexible travel schedule? Discover the best time to fly to Big Sky from Atlanta 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.

Cheapflights Insights

Everything you need to know about your flight from Atlanta to Big Sky

How far ahead should I book a flight from Atlanta to Big Sky?

The price you pay for your flight from Atlanta to Big Sky may vary depending on when you book. For the best chance of a lower fare, look to book 58 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Atlanta to Big Sky?

Currently, October is the cheapest month in which you can book a flight from Atlanta to Big Sky (average of $371). Flying from Atlanta to Big Sky in May is currently the most expensive (average of $478). 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.

What is the cheapest time of day to fly from ATL to BS1?

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

What is the cheapest day to fly from Atlanta to Big Sky?

Travelers seeking maximum savings on their Atlanta to Big Sky flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Big Sky

Read through reviews of airlines operating flights from Atlanta to Big Sky, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Southwest

8.0

Very good

4,241 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,980 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Hawaiian Airlines

7.8

Good

2,611 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What airport do you fly from for flights from Atlanta to Big Sky?
Atlanta Hartsfield-Jackson (ATL) is the airport you will fly out of if you book a flight from Atlanta to Big Sky. You should not have trouble finding flights to Big Sky from Hartsfield-Jackson; the airport handles an average of 1 outbound flight to Big Sky per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Atlanta airport to Big Sky. It is only a 8.2 mi journey to Hartsfield-Jackson (ATL) from Atlanta’s city center.
What are the cheapest airlines to fly from Atlanta to Big Sky one-way?
The cheapest airlines for a one-way flight from Atlanta to Big Sky are Hawaiian Airlines ($166), Southwest ($185), and Alaska Airlines ($193).
What are the cheapest flights from Atlanta to Big Sky?
The cheapest flight price from Atlanta to Big Sky is $453. On average you can expect to pay $694. The most popular route, (Atlanta Hartsfield-Jackson - Bozeman Gallatin Field), can usually be booked for $270.
Can I find deals for flights from Atlanta to Big Sky that include hotel bookings?
Yes. In addition to deals on Atlanta to Big Sky flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Atlanta to Big Sky?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Big Sky.
Can I find deals for business class flights from Atlanta to Big Sky?
Yes. Cheapflights offers flight deals from Atlanta to Big Sky by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Atlanta to Big Sky?
Currently, October is the cheapest month in which you can book a flight from Atlanta to Big Sky (average of $371). Flying from Atlanta to Big Sky in May is currently the most expensive (average of $478). 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

Alternative routes for Atlanta to Big Sky

Atlanta to Bozeman flights

Atlanta to Kalispell flights

Asheville to Bozeman flights

Jacksonville to Bozeman flights

Jacksonville to Kalispell flights

Savannah to Bozeman flights

Chattanooga to Bozeman flights

Atlanta to Missoula flights

Atlanta to Billings flights

Jacksonville to Missoula flights

Jacksonville to Billings flights

Chattanooga to Kalispell flights

Atlanta to Great Falls flights

Jacksonville to Great Falls flights

Atlanta to West Yellowstone flights

Asheville to Kalispell flights

Atlanta to Cody flights

Tallahassee to Great Falls flights

Chattanooga to Missoula flights

Augusta to Billings flights

Tallahassee to Bozeman flights

Atlanta to Helena flights

Atlanta to Butte flights

Jacksonville to Helena flights

Asheville to Great Falls flights

Asheville to Helena flights

Asheville to Billings flights

Augusta to Bozeman flights

Tallahassee to Kalispell flights

Savannah to Billings flights

Jacksonville to West Yellowstone flights

Tallahassee to Missoula flights

Valdosta to Missoula flights

Chattanooga to Billings flights

Asheville to Missoula flights

Jacksonville to Butte flights

Augusta to Helena flights

Augusta to Missoula flights

Albany to Missoula flights

Augusta to Butte flights

Augusta to Great Falls flights

Asheville to Butte flights

Brunswick to Great Falls flights

Asheville to West Yellowstone flights

Chattanooga to Cody flights

Chattanooga to West Yellowstone flights

Top 6 airlines flying from Atlanta to Big Sky

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$175	Average$686	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$250	Average$427	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$288	Average$550	FlexibilityNo cancel fee	On-time69%
Hawaiian Airlines	Cheapest$358	Average$425	FlexibilityNo cancel fee	On-time85%
American Airlines	Cheapest$359	Average$501	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$374	Average$486	FlexibilityNo cancel fee	On-time63%

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.

$145+ Cheap flights from Atlanta (ATL) to Big Sky, MT

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Atlanta to Big Sky with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Big Sky are usually found in November or October, booked 58 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Atlanta to Big Sky

Keep the following information in mind while searching for Atlanta to Big Sky flight deals. Data was last updated July 30, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Atlanta to Big Sky

Cheapest flights from Atlanta to Big SkyExplore the most affordable flight options available from Atlanta to Big Sky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Atlanta to Big Sky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Atlanta to Big Sky that are best for you.

Best time to book a flight from Atlanta to Big Sky

Have a flexible travel schedule? Discover the best time to fly to Big Sky from Atlanta with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Atlanta to Big Sky

How far ahead should I book a flight from Atlanta to Big Sky?

Use this chart to determine the optimal time to book a round-trip flight from Atlanta to Big Sky. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from Atlanta to Big Sky?

What is the cheapest time of day to fly from ATL to BS1?

Find hourly flight availability from Atlanta to Big Sky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

What is the cheapest day to fly from Atlanta to Big Sky?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to Big Sky. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Big Sky

Read through reviews of airlines operating flights from Atlanta to Big Sky, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Atlanta to Big Sky. 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 Atlanta to Big Sky?

What are the cheapest airlines to fly from Atlanta to Big Sky one-way?

What are the cheapest flights from Atlanta to Big Sky?

Can I find deals for flights from Atlanta to Big Sky that include hotel bookings?

How can I find direct flights from Atlanta to Big Sky?

Can I find deals for business class flights from Atlanta to Big Sky?

What is the cheapest month to book a flight from Atlanta to Big Sky?

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 Atlanta to Big Sky

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

Top 6 airlines flying from Atlanta to Big Sky

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Atlanta to Big Sky
Explore the most affordable flight options available from Atlanta to Big Sky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.