Flights under $100 | Start your search now
Flights under $100
Plan a long weekend getaway or visit your loved ones with fares to U.S. destinations for under $100. Explore our great fares and book today.
One-way flight deals under $100
From | To | Fare type | Travel dates | Price |
|---|---|---|---|---|
| Phoenix (PHX) | Miami (MIA) | One way I Economy | Depart 09/24/25 | from $83Fare subject to changes Updated: 2 hours ago |
| Dallas (DFW) | Las Vegas (LAS) | One way I Economy | Depart 09/20/25 | from $73Fare subject to changes Updated: 2 hours ago |
| Dallas (DFW) | Orlando (MCO) | One way I Economy | Depart 08/30/25 | from $73Fare subject to changes Updated: 2 hours ago |
| Dallas (DFW) | Boston (BOS) | One way I Economy | Depart 10/04/25 | from $83Fare subject to changes Updated: 58 minutes ago |
| Chicago (ORD) | Miami (MIA) | One way I Economy | Depart 09/12/25 | from $69Fare subject to changes Updated: 2 hours ago |
| Chicago (ORD) | Los Angeles (LAX) | One way I Economy | Depart 09/08/25 | from $90Fare subject to changes Updated: 1 hour ago |
| Chicago (ORD) | Los Angeles (LAX) | One way I Economy | Depart 09/18/25 | from $90Fare subject to changes Updated: 21 minutes ago |
| New York (LGA) | Miami (MIA) | One way I Economy | Depart 09/01/25 | from $74Fare subject to changes Updated: 2 hours ago |
| New York (LGA) | Miami (MIA) | One way I Economy | Depart 10/02/25 | from $74Fare subject to changes Updated: 2 hours ago |
| Chicago (ORD) | Dallas (DFW) | One way I Economy | Depart 09/03/25 | from $68Fare subject to changes Updated: 1 hour ago |
| Los Angeles (LAX) | Denver (DEN) | One way I Economy | Depart 09/21/25 | from $99Fare subject to changes Updated: 2 hours ago |
| Chicago (ORD) | San Francisco (SFO) | One way I Economy | Depart 09/16/25 | from $65Fare subject to changes Updated: 1 hour ago |
| Chicago (ORD) | San Francisco (SFO) | One way I Economy | Depart 10/16/25 | from $65Fare subject to changes Updated: 47 minutes ago |
| Chicago (ORD) | San Francisco (SFO) | One way I Economy | Depart 09/07/25 | from $82Fare subject to changes Updated: 1 hour ago |
| Philadelphia (PHL) | Fort Lauderdale (FLL) | One way I Economy | Depart 08/31/25 | from $94Fare subject to changes Updated: 2 hours ago |
| Chicago (ORD) | New York (LGA) | One way I Economy | Depart 09/19/25 | from $85Fare subject to changes Updated: 2 hours ago |
| Chicago (ORD) | New York (LGA) | One way I Economy | Depart 09/18/25 | from $85Fare subject to changes Updated: 2 hours ago |
| Dallas (DFW) | San Diego (SAN) | One way I Economy | Depart 09/01/25 | from $82Fare subject to changes Updated: 1 hour ago |
| New York (JFK) | Miami (MIA) | One way I Economy | Depart 08/23/25 | from $74Fare subject to changes Updated: 1 hour ago |
| Phoenix (PHX) | San Diego (SAN) | One way I Economy | Depart 09/01/25 | from $46Fare subject to changes Updated: 2 hours ago |
*Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.
Round trip flights under $100
From | To | Fare type | Travel dates | Price |
|---|---|---|---|---|
| Chicago (CHI) | Pittsburgh (PIT) | Round trip I Economy | 09/16/25 - 09/23/25 | from $91Fare subject to changes Updated: 2 hours ago |
| Saint Louis (STL) | Chicago (CHI) | Round trip I Economy | 09/13/25 - 09/20/25 | from $91Fare subject to changes Updated: 2 hours ago |
| Chicago (CHI) | Saint Louis (STL) | Round trip I Economy | 08/30/25 - 09/06/25 | from $91Fare subject to changes Updated: 2 hours ago |
| Phoenix (PHX) | San Diego (SAN) | Round trip I Economy | 10/20/25 - 10/23/25 | from $91Fare subject to changes Updated: 2 hours ago |
| Chicago (ORD) | Boston (BOS) | Round trip I Economy | 08/26/25 - 08/27/25 | from $91Fare subject to changes Updated: 1 hour ago |
| Los Angeles (LAX) | Las Vegas (LAS) | Round trip I Economy | 09/03/25 - 09/06/25 | from $91Fare subject to changes Updated: 38 minutes ago |
| San Diego (SAN) | Phoenix (PHX) | Round trip I Economy | 09/18/25 - 09/22/25 | from $91Fare subject to changes Updated: 2 hours ago |
| Boston (BOS) | Chicago (CHI) | Round trip I Economy | 10/23/25 - 10/27/25 | from $91Fare subject to changes Updated: 2 hours ago |
| Washington, D.C. (WAS) | Atlanta (ATL) | Round trip I Economy | 08/26/25 - 09/02/25 | from $93Fare subject to changes Updated: 2 hours ago |
| Chicago (ORD) | Atlanta (ATL) | Round trip I Economy | 08/25/25 - 08/27/25 | from $93Fare subject to changes Updated: 2 hours ago |
| San Francisco (SFO) | Phoenix (PHX) | Round trip I Economy | 10/01/25 - 10/04/25 | from $93Fare subject to changes Updated: 2 hours ago |
| Dallas (DFW) | Atlanta (ATL) | Round trip I Economy | 09/18/25 - 09/25/25 | from $95Fare subject to changes Updated: 1 hour ago |
| Atlanta (ATL) | Dallas (DFW) | Round trip I Economy | 08/26/25 - 11/20/25 | from $95Fare subject to changes Updated: 1 hour ago |
| Washington, D.C. (WAS) | Fort Lauderdale (FLL) | Round trip I Economy | 10/01/25 - 10/08/25 | from $99Fare subject to changes Updated: 2 hours ago |
| Washington, D.C. (DCA) | Miami (MIA) | Round trip I Economy | 08/27/25 - 09/09/25 | from $99Fare subject to changes Updated: 2 hours ago |
| Boston (BOS) | Chicago (ORD) | Round trip I Economy | 09/26/25 - 09/28/25 | from $99Fare subject to changes Updated: 51 minutes ago |
| Los Angeles (LAX) | San Francisco (SFO) | Round trip I Economy | 10/03/25 - 10/05/25 | from $99Fare subject to changes Updated: 1 hour ago |