[Expired] [Flash Sale] $43 Round-Trip Fares With Frontier Airlines

Update:The offer mentioned below has expired and is no longer available.

This Earth Day ultra-low-cost carrier Frontier is celebrating with a one-day sale with fares on domestic routes — including to Puerto Rico — from just $43 round-trip.

The price of $43 was chosen as this reflects the fact that Frontier, as per the airline, is 43% more fuel efficient than any other U.S. carrier.

“Our constant dedication to enhancing fuel efficiency and reducing our environmental footprint enables us to maintain our position as America’s Greenest Airline,” said Tyri Squires, vice president of marketing at Frontier Airlines.

Here are some examples of the deals you can book.

Fly Frontier From $43 Round-Trip — Details

Frontier’s $43 flash sale ends at midnight E.T. on April 23, 2024, so you’ll have to act fast if you don’t want to miss out.

Sale fares are only available for travel on Tuesdays and Wednesdays through June 30, 2024, and from August 15 through October 31, 2024. The only blackout date to be aware of is September 3, 2024.

As a reminder, Frontier’s ultra-low-fares don’t include seat selection, in-flight snacks and drinks, or a checked bag.

• Class: Economy
• Routes: Over 200
• Dates: April through June 30, 2024, and August 15 through October 31, 2024.
• Rates: $43 round-trip or less

To check if your desired route is included in the sale, we’d recommend heading to Frontier.com for the full list of routes on which the Earth Day sale fares are applicable.

Here’s an example of one we found, which is even cheaper than the advertised sale fares:

Best Ways To Book

Fares must be purchased directly through the airlines website using your preferred payment method.

However, we recommend using a credit card that will reward you for spending on travel, such as The Platinum Card^® from American Express. Using this card for Frontier flights would earn 5x points per $1 spent!

An additional perk of the card is that it grants cardholders access to thousands of lounges worldwide, including American Express’ very own Centurion Lounges, Priority Pass lounges, and more.

Final Thoughts

The irony is not lost on us that Frontier is celebrating how green it is by incentivizing more travel. However, round-trip fares from just $43 on routes across the U.S. are certainly worth getting excited about.