Flights Under $99: Book Cheap Flights to Anywhere
Flights under $99 are not a myth, and they show up more often than most travellers expect. The catch is that they cluster on specific routes, specific days and specific fare types. Learn where they hide and a $99 flight stops being luck. Below is where you can actually fly for under $100 right now, how to shake these fares out of a search, and what you are and are not getting for the money.
Where Can You Fly for Under $100?
Most flights under $100 to anywhere in the US are short and medium-haul hops between big hubs, plus a handful of short international routes into Mexico, the Caribbean and Canada. Sub-$100 fares are usually one-way, most common on midweek departures, and easiest to find out of high-competition airports where three or more carriers fly the same route.
If you have a budget but no destination yet, start from your home airport rather than a city name. Our explore tool shows you everywhere you can reach from where you live, sorted by price, which is a far faster way to find a $99 flight than guessing cities one at a time.
Popular US Routes Under $100
These are the one-way domestic city pairs where budget fares turn up most reliably. Short distance, plenty of competing airlines, and enough daily departures that carriers have seats to discount. (All fares are dynamic in nature and may or may not be available at the time of booking.)
- Los Angeles to Las Vegas, one of the shortest and most contested routes in the country
- Atlanta to Fort Lauderdale, a Florida run with heavy low-cost carrier presence
- Chicago to Las Vegas, where midweek departures price far below weekends
- San Francisco to Los Angeles, the classic California shuttle
- Philadelphia to Orlando, strongest outside school holidays
- New York to Fort Lauderdale, often cheaper than flying into Miami
- New York to Miami, busy enough that fares swing hard by date
Sun-and-city destinations do most of the heavy lifting on this list. Las Vegas, Orlando, Miami and Fort Lauderdale come up again and again, with Atlanta, Denver, Phoenix, San Diego, Tampa and Baltimore close behind. Browse the full set under Domestic Flights.
International Flights Under $100 to Anywhere
Leaving the country for under $100 is hard but far from impossible, and the rule is simple: stay close. Short-haul routes into Mexico, the Caribbean and Canada are where international fares dip below three figures, usually one-way and usually on low-season dates. (All fares are dynamic in nature and may or may not be available at the time of booking.)
Cancun out of Texas and Florida is the most consistent option. Mexico City and Guadalajara price well from southern and western hubs, Puerto Vallarta is worth checking in shoulder season, Nassau is a short hop from Florida, and Toronto is often the cheapest international fare on the board from the northeast and midwest. Compare the lot under International Flights.
One-Way or Round-Trip: Which Gets You Under $100?
For a fare under $100, one-way is almost always the answer. A round trip under $100 does exist, but it is limited to a handful of very short domestic routes at off-peak times. If you are seeing sub-$100 prices on a search, they are usually per direction.
| One-way under $100 | Round-trip under $100 | |
|---|---|---|
| How often available | Common on short and medium domestic routes | Rare, short routes only |
| Best for | Flexible plans, multi-city trips, open-ended travel | Fixed weekend trips on very short hops |
| Typical fare type | Basic economy | Basic economy |
| Mixing airlines | Yes, and it often costs less | Not applicable |
Booking two separate one-way tickets on two different airlines regularly beats a single round-trip fare, because you take the cheaper seat in each direction rather than the cheapest pairing one carrier can offer. Price both ways before you commit. Compare one way flights against round trip flights, and if you are stringing several cities together, look at multi-city as well.
What a Flight Under $100 Actually Includes
Nearly every fare under $100 is a basic economy ticket. That means a seat and a personal item that fits under the seat in front of you. A carry-on bag, a checked bag, a chosen seat and free changes are usually extras, and how much they cost varies by airline.
Two things to check before you book:
- Bags: Confirm what your fare includes and price your bag when you book, not at the airport where it costs the most. Current airline policies are listed under baggage fees.
- Fees: CheapOair’s service fees are disclosed before you pay, and they are exactly what your promo code discounts.
Boarding order is typically last on a basic economy fare, so overhead space may be gone by the time you board. If you are travelling with a backpack, that costs you nothing.
How to Find Flights Under $100
Cheap flights under $100 come down to habits rather than timing the market. Seven that work:
- Search a whole month, not a date. Flexible-date search shows you the cheapest day across the calendar. A single day’s shift can get better deals.
- Fly midweek. Historically, Tuesday, Wednesday and Saturday departures consistently price below Friday and Sunday.
- Check every nearby airport. Fort Lauderdale instead of Miami, Baltimore instead of Washington, Burbank instead of LAX. The drive is often worth the difference in price.
- Price two one-ways separately. Mixing carriers beats a single round trip more often than people expect.
- Set a fare alert. Watch the route instead of refreshing it.
- Take the awkward flights. The 6am departure and the late-evening return are cheaper for a reason, and nobody else wants them.
- Book the quiet weeks. Late January, February, early May and September are the softest demand windows of the year.
Do three of these together and you are usually looking at plane tickets under $100 on routes that showed $180 on your first search.
The Cheapest Time to Book Flights Under $100
Book domestic trips roughly three to eight weeks out. Earlier than that and airlines have not yet released their cheapest fare buckets. Later and you are buying into the last-minute demand curve, where prices climb steeply in the final two weeks.
As per COA’s historical data, February is the cheapest month of the year to fly on sub-$100 fares. Demand collapses after the New Year rush and airlines discount hard to fill seats. Late January and early September run a close second. Avoid the fortnight either side of Thanksgiving, Christmas and July 4th entirely if a budget fare is the goal.
Missed the window? Last minute flight deals do still surface under $100 when airlines dump unsold inventory, usually on early-morning and late-night departures. Keep your dates loose and be ready to book on the spot.
$99 Getaway Deals and How to Save More on CheapOair
A low base fare is the start. Four ways to take more off the total:
- Promo codes: apply the current code at checkout for savings on our service fees, across a booking of five travellers.
- ClubMiles: free to join, and you start with points. Members save on select flights, and 200 points equals $1 off a future trip. See ClubMiles rewards for the full breakdown.
- Price Match Promise: find the same itinerary cheaper somewhere else and we will match it. Full terms and conditions apply.
- Turning a $99 flight into a whole trip? Bundling saves more than booking separately, whether that means adding hotels under $100 or building a full vacation package.
Once you have booked, online check-in and our flight status tracker handle the rest, with 24/7 support behind you. More than 40 million travellers have booked with us, and you can read what they said in our customer reviews.
More Flight Deals by Budget
Not finding your route under $100? Move up or down the ladder. Flights under $29 and flights under $49 cover the lowest short-haul fares we list, and flights under $199 opens up longer domestic routes and most of our international inventory.
Ready to Go?
Pick your dates, run a flexible search, and let the calendar show you the cheapest day rather than guessing at it. Compare one-way against round-trip, check the airport next door, and grab the fare while it is live, because sub-$100 seats do not sit around. Your next flight under $99 is one search away, so book cheap flights on CheapOair and put the difference towards the trip itself.
FAQs: Flights Under $99 and $100
How can I book flights under $99?
Search with flexible dates, compare nearby airports, and check midweek departures where budget fares cluster. Booking three to eight weeks ahead and pricing two one-way tickets separately will surface sub-$99 fares that a standard round-trip search misses.
Are flights under $100 one-way or round-trip?
Most are one-way. Round-trip fares under $100 do exist but are limited to very short domestic routes at off-peak times. Always check which one a listed price refers to before you budget for the whole trip.
Can I find international flights under $100?
Yes, on short-haul routes. Mexico, the Caribbean and Canada are where international fares dip below $100, usually one-way and usually outside peak season. Cancun, Mexico City, Nassau and Toronto are the most consistent options.
Where can I fly for under $100 to anywhere in the US?
Short and medium-haul hops between competitive hubs. Las Vegas, Orlando, Miami, Fort Lauderdale, Atlanta, Denver and San Diego come up most often. Searching from your home airport rather than a destination will show you everywhere in range of your budget.
What is the catch with flights under $100?
Almost all sub-$100 fares are basic economy. You get a seat and a personal item; a carry-on, checked bag, chosen seat and free changes usually cost extra. The fare is still good value, but compare the all-in total rather than the headline price.
What is the best month to fly for under $100?
February is the cheapest month of the year for sub-$100 fares, because demand drops sharply after the holidays and airlines discount to fill seats. Late January and early September are close behind. (As per COA’s historical data)
When is the best time to book cheap airfare deals?
Three to eight weeks ahead for domestic trips. Book earlier and airlines may not have released their cheapest fare buckets yet; book inside two weeks and you are paying into the last-minute demand curve.
Are flexible travel dates important for finding low fares?
Yes, more than any other single factor. Shifting your departure by a day or two regularly moves the fare too, so searching a whole month rather than a fixed date is the quickest way to find flights under $100.
Is it cheaper to book two one-way flights instead of a round trip?
Often, yes. Booking separate one-way tickets on two different airlines lets you take the cheapest seat in each direction instead of the cheapest pairing a single carrier can offer. Price both options before you book.
Which airlines have the cheapest $99 flights?
Frontier posts the most sub-$100 base fares domestically, though its bag pricing narrows the gap. American, United and Alaska run basic economy fares under $100 on competitive routes with better schedules. Volaris and Aeromexico are strongest on Mexico routes.
Can I change or cancel a flight under $100?
It depends on the fare rules, and basic economy tickets are the most restrictive. Check the change and cancellation terms shown at checkout before you pay, and contact our 24/7 support team if your plans shift after booking.
Can I compare flight deals before booking?
Yes. Every search compares fares across 500+ airlines in one place, so you can sort by price, filter by stops or airline, and see the cheapest option without checking carriers one at a time.
