Left arrow
Flight Booking

How to Find Cheap Domestic Flights

Scott Keyes
By 
Scott Keyes
Founder & Chief Flight Expert
3 min read
Last updated 
September 10, 2020

With international travel options limited in the short term, domestic trips are top of mind for many travelers. Here are our tips searching for domestic flights—and what you need to know about domestic deals right now. 

us map with pushpins in various cities.

The best deals right now are domestic.

In normal times, the best deals typically happen on international flights, which are typically expensive but occasionally get super cheap.

But during the pandemic, airlines have slashed the number of international flights, making deals rarer. With far more seats available on domestic routes—and far greater demand from leisure travelers—that’s where you’ll currently find the best deals.

Cheap domestic flights are most likely to pop up 1-3 months in advance.

The Goldilocks Window for when cheap domestic flights are most likely to pop up is 1-3 months before a trip. (For international flights it’s more like 2-8 months out.)

One interesting quirk, though: during the pandemic, last-minute flights have gotten much cheaper. In the Before Times, airlines would jack up the price on last-minute flights to gouge business travelers. But with business travel currently on hiatus, last-minute deals are having a moment.

Many airlines are offering free date changes.

In March, Delta, United, Alaska, and jetBlue all joined Southwest in automatically waiving change fees on all new bookings (that policy has continued through August 31), though you’d still have to pay a fare difference if there is one. (American’s policy is slightly different, with waived change fees on all regular economy tickets; fees are waived on basic economy tickets only if you travel by September 30.)

Pre-pandemic it would cost $200+ to change your travel dates. While this current perk probably won’t last much longer, there’s an opportunity now to lock in low fares and have flexibility to change your travel dates later if you don’t feel it’s safe to travel come trip time.

Southwest doesn’t show up on flight search engines.

With open seating and no fees for bags/changes/cancellations, Southwest is a fan favorite. Be sure to account for these perks when comparing fares; all else equal, a $150 Southwest ticket is actually a better deal than a $130 United basic economy ticket.

But remember, Southwest fares don’t show up on Google Flights or any other search engine; gotta search separately on Southwest’s website. (We include Southwest in SCF deals!)

Keep an eye out for fare matches.

Airlines are notorious for playing Follow the Leader; when American puts out a $100 roundtrip fare to Chicago, it’s quite common to see the same fare show up within hours on United, Southwest, et al.

So if you see a fare you like but are hoping for a different airline/routing/flight time, a little patience may pay off.

And if a better flight pops up after you booked, remember the 24-Hour Rule, a federal law that automatically gives travelers a 24-hour grace period after purchase to cancel for a full refund.

Domestic deals last longer.

There’s a rule of thumb with flights: the better the fare, the shorter it lasts.

But while the cheapest international fares are often gone within hours, domestic deals tend to stick around longer, usually at least a few days.

Remember to search flexible dates and alternate airports 

As with international flights, the more flexible you can be when searching for domestic deals, the more you stand to save. For weekend trips, it’s sometimes cheaper to shift your dates from the standard Friday to Sunday (e.g. look at Thursday-Sunday or Friday to Monday). For holiday trips, look at flying on the holiday if your plans allow it. It can be a lot cheaper to fly Christmas Day than a day or two before.

Look at alternate airports, too. For example, if you’re planning to visit Santa Fe, consider flying into Albuquerque, which is often cheaper and just an hour’s drive from Santa Fe.  

Compare apples to apples when choosing between flights 

Don’t forget to factor any fees into your cost comparison when choosing flights, especially if you’re tempted by one of the rock-bottom fares on a budget airline like Spirit, Allegiant, or Frontier. They have so many egregious fees, we don’t even send our members deals on these airlines. 

These fares may look like a great deal—and if you can’t find another option and can travel very light, they may work for you—but when you add in all the fees, the “more expensive” options typically come out to be better deals. 

As mentioned above, even at $20 more, a Southwest flight—which includes two checked bags, a carryon, and open seating—is a better deal than a United basic economy ticket with extra fees for seat assignments and a full-sized carryon on domestic flights. 

Consider connections in these comparisons, too. A connecting flight is sometimes cheaper but if it eats up half your trip time or increases the likelihood of complications (e.g. connecting through Chicago in winter), it may be worth it to pay a little more for a direct flight. 

When you're ready to explore, check out the best national parks in the US, some amazing underrated cities, and 21 great American road trips
Last Updated 
August 12, 2020
How to Find Cheap Domestic Flights
Scott Keyes
Founder & Chief Flight Expert

Scott has traveled to 46 countries (and 46 states!), living in California, to Oaxaca, to Oregon. He’s left-handed, drinks five cups of tea daily, and holds a vendetta against the “Happy Birthday” song. On a dare, he once ate 13 hot dogs (and a bowl of Dippin’ Dots) at the ballpark. He grew up in Ohio and founded Scott’s Cheap Flights in a Denver coffee shop. Favorite airport: PDX.

Get alerts about cheap flights up to 90% off normal prices
Find out when airlines accidentally publish the wrong prices
Save hundreds on summer, peak season and holiday flights
Sign Up
Right arrow