How does KAYAK find flight deals under $100?

KAYAK aggregates deals from hundreds of travel providers to allow you to quickly and easily compare flight deals from United States that match your budget. Utilize the available filters to narrow down deals to those that are perfect for you.

Is it easier to find one-way or round-trip flight deals under $100?

Getting a flight under $100, either one-way or round-trip, can hinge on a few things like your destination, the airline you choose, and when you're buying the tickets. Round-trip tickets used to be the standard, but these days, with budget airlines and more competition, that's not always the best option. For domestic flights or short trips, you might find a better deal by looking for one-way tickets under $100. This is especially true if you're flying with a budget-friendly airline. If you're heading overseas or on a longer journey, round-trip tickets under $100 usually provide more value. Another savvy way to stick to a $100 budget is by booking two one-way tickets with two different airlines. This clever strategy is known as a "hacker fare".

Are flights under $100 available with popular airlines?

Yes – deals on flights under $100 can often be found on KAYAK from popular airlines such as Allegiant Air, Avelo Airlines and Southern / Mokulele. Deal availability does depend on several factors including the specific flight route you’re interested in, departure dates, and booking period. Be sure to check back regularly as new deals are often being discovered by KAYAK users.

Are there deals on flights under $100 to domestic destinations?

Yes – KAYAK often has deals on flights under $100 departing and arriving within United States. Deals may vary depending on your preferred origin and arrival airports, as well as the time of week and year, so be sure to check back soon if you’re not finding the flight deals you’re looking for.

Are there deals on flights under $100 to international destinations?

Yes – deals on flights under $100 arriving outside of United States can often be found on KAYAK. As international travel can often cost a bit more than domestic, the types of flight deals may vary (one-way or round-trip) depending on the flight route and time of year you’re looking to travel. Be sure to check back soon if you’re not finding the right international flight deal under your budget as deals are consistently being refreshed.

Flights Under $100

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Flights Deals

Latest Airfare for Under $100

Here are some of the best deals found on KAYAK recently from the most popular airlines for flights under $100 departing in the coming months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

New York

Miami

Chicago

Houston

Vancouver

Dallas

All Deals

Cheap Flights Under $100 to New York

Wed, Jul 2 - Wed, Jul 9

5:51 am - 9:00 amORD-LGA

2h 09mnonstop

6:30 pm - 8:00 pmLGA-ORD

2h 30mnonstop

$85Spirit Airlines

Find Deal

Tue, Jul 1 - Sat, Jul 5

6:00 am - 8:59 amFLL-EWR

2h 59mnonstop

5:58 pm - 9:10 pmEWR-FLL

3h 12mnonstop

$85Spirit Airlines

Find Deal

Tue, Jul 1 - Fri, Jul 4

5:51 am - 9:00 amORD-LGA

2h 09mnonstop

6:30 pm - 8:05 pmLGA-ORD

2h 35mnonstop

$86Spirit Airlines

Find Deal

Wed, Jul 2 - Fri, Jul 4

5:51 am - 9:00 amORD-LGA

2h 09mnonstop

6:30 pm - 8:05 pmLGA-ORD

2h 35mnonstop

$87Spirit Airlines

Find Deal

Tue, Jul 1 - Sat, Jul 5

6:00 am - 8:59 amFLL-EWR

2h 59mnonstop

5:58 pm - 9:10 pmEWR-FLL

3h 12mnonstop

$87Spirit Airlines

Find Deal

Wed, Jul 2 - Wed, Jul 9

5:51 am - 9:00 amORD-LGA

2h 09mnonstop

6:30 pm - 8:00 pmLGA-ORD

2h 30mnonstop

$88Spirit Airlines

Find Deal

Wed, Jul 2 - Wed, Jul 9

6:00 am - 8:59 amFLL-EWR

2h 59mnonstop

10:12 am - 1:15 pmEWR-FLL

3h 03mnonstop

$88Spirit Airlines

Find Deal

Mon, Jun 30 - Wed, Jul 2

6:00 am - 8:59 amFLL-EWR

2h 59mnonstop

5:15 am - 8:19 amEWR-FLL

3h 04mnonstop

$90Spirit Airlines

Find Deal

Wed, Jul 2 - Wed, Jul 9

5:51 am - 9:00 amORD-LGA

2h 09mnonstop

6:30 pm - 8:00 pmLGA-ORD

2h 30mnonstop

$92Spirit Airlines

Find Deal

Mon, Jun 30 - Sat, Jul 5

6:00 am - 8:59 amFLL-EWR

2h 59mnonstop

5:58 pm - 9:10 pmEWR-FLL

3h 12mnonstop

$92Spirit Airlines

Find Deal

Useful Info

How does KAYAK find flight deals under $100?
KAYAK aggregates deals from hundreds of travel providers to allow you to quickly and easily compare flight deals from United States that match your budget. Utilize the available filters to narrow down deals to those that are perfect for you.
Is it easier to find one-way or round-trip flight deals under $100?
Getting a flight under $100, either one-way or round-trip, can hinge on a few things like your destination, the airline you choose, and when you're buying the tickets. Round-trip tickets used to be the standard, but these days, with budget airlines and more competition, that's not always the best option.

For domestic flights or short trips, you might find a better deal by looking for one-way tickets under $100. This is especially true if you're flying with a budget-friendly airline. If you're heading overseas or on a longer journey, round-trip tickets under $100 usually provide more value. Another savvy way to stick to a $100 budget is by booking two one-way tickets with two different airlines. This clever strategy is known as a "hacker fare".
Are flights under $100 available with popular airlines?
Yes – deals on flights under $100 can often be found on KAYAK from popular airlines such as Allegiant Air, Avelo Airlines and Southern / Mokulele. Deal availability does depend on several factors including the specific flight route you’re interested in, departure dates, and booking period. Be sure to check back regularly as new deals are often being discovered by KAYAK users.
Are there deals on flights under $100 to domestic destinations?
Yes – KAYAK often has deals on flights under $100 departing and arriving within United States. Deals may vary depending on your preferred origin and arrival airports, as well as the time of week and year, so be sure to check back soon if you’re not finding the flight deals you’re looking for.
Are there deals on flights under $100 to international destinations?
Yes – deals on flights under $100 arriving outside of United States can often be found on KAYAK. As international travel can often cost a bit more than domestic, the types of flight deals may vary (one-way or round-trip) depending on the flight route and time of year you’re looking to travel. Be sure to check back soon if you’re not finding the right international flight deal under your budget as deals are consistently being refreshed.

For the optimal price on flights under $100, it's recommended to book your ticket at least a week before you plan to take off.
If you're looking to score flights under $100, September is your best bet. So, plan for a fall getaway if you're aiming for these budget-friendly fares.
The day you choose to fly can also play a part in finding desirable tickets under $100. According to all the flight bookings under $100 made on KAYAK in the past couple of weeks, Monday was the day to beat for the best deals.