Cheap flights from San Antonio, TX to Sidney, MT
Choose between Cape Air, Allegiant Air, or Frontier Airlines to find the best price
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Sidney
Most popular airline | Cape Air |
---|
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
Sorry, we couldn't find any results
Sorry, we couldn't find any results
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are Cape Air, Allegiant Air, Frontier Airlines, Spirit Airlines, and Alaska Airlines. San Antonio and Sidney have 22 direct flights per week.
Check-in for a flight from San Antonio to Sidney
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Cape Air | KAP | 9K | Yes | No |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Sidney
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | -3°C | -12°C |
February | -3°C | -12°C |
March | 4°C | -5°C |
April | 11°C | 1°C |
May | 18°C | 7°C |
June | 25°C | 13°C |
July | 29°C | 17°C |
August | 28°C | 16°C |
September | 23°C | 11°C |
October | 13°C | 3°C |
November | 4°C | -4°C |
December | -3°C | -10°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from San Antonio
- Flights from San Antonio to Las Vegas
- Flights from San Antonio to Mexico City
- Flights from San Antonio to Denver
- Flights from San Antonio to Orlando
- Flights from San Antonio to Guadalajara
- Flights from San Antonio to San Diego
- Flights from San Antonio to Atlanta
- Flights from San Antonio to Phoenix
- Flights from San Antonio to Los Angeles
- Flights from San Antonio to Washington, D.C.
- Flights from San Antonio to Cancún
- Flights from San Antonio to Chicago
- Flights from San Antonio to Raleigh
- Flights from San Antonio to Salt Lake City
- Flights from San Antonio to San José del Cabo
- Flights from San Antonio to Philadelphia
- Flights from San Antonio to New Orleans
- Flights from San Antonio to San Juan
- Flights from San Antonio to Paris
- Flights from San Antonio to New York
Flights to Sidney
- Flights from Billings to Sidney
- Flights from Denver to Sidney
- Flights from Wichita to Sidney
- Flights from Mexico City to Sidney
- Flights from Charlotte to Sidney
- Flights from New York to Sidney
- Flights from Orlando to Sidney
- Flights from Las Vegas to Sidney
- Flights from Chicago to Sidney
- Flights from Miami to Sidney
- Flights from Los Angeles to Sidney
- Flights from Atlanta to Sidney
- Flights from Dallas to Sidney
- Flights from Phoenix to Sidney
- Flights from Philadelphia to Sidney
- Flights from San Francisco to Sidney
- Flights from Houston to Sidney
- Flights from San Juan to Sidney
- Flights from Washington, D.C. to Sidney
- Flights from Fort Lauderdale to Sidney
Popular routes
- Flights from Los Angeles to Cancún
- Flights from Meridian to Copenhagen
- Flights from Providence to La Serena
- Flights from Santa Ana to Puerto Carreño
- Flights from New York to Paris
- Flights from Arcata to Eugene
- Flights from Raleigh to Crescent City
- Flights from Sidney to San Antonio
- Flights from Bloomington to Roanoke
- Flights from Charlottesville to Tbilisi
- Flights from Traverse City to Las Palmas
- Flights from Grand Forks to Piura
- Flights from Phoenix to Chicago