The cheapest times to fly from ONT to ASM are

  • January 1st to February 4th (except the week of January 8th)
  • March 12th to May 20th
  • August 20th to December 9th (except the weeks of September 3rd, September 17th, September 24th, and November 19th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ONT to ASM is late November to early December. Prices can be as high as $14000 for Monday flights during mid December, or as low as $1304 for Friday flights around late November to early December.


When to Fly to Asmara

Flying from Ontario, CA (ONT) to Asmara (ASM) will usually cost between $1399 to $12500 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late November to early December with an average ticket price of $5568. Due to high demand the most expensive time to fly is mid December, with an average price of $8139. Planning your trip to low-cost times can easily save you $2572 on economy flights and even more on first-class flights. Generally, any price below $8231 can be considered a good price for a round-trip ONT to ASM flight.

See below for a graph of average weekly prices for the ONT to ASM route. All prices are for round-trip tickets in USD.

ONT to ASM Flight Prices

Compared to other flights, the ONT to ASM flight is more expensive than the average and costs more than the average flight leaving from Ontario. The average price per mile (for a direct flight) is $0.59, which is above average.


Flight Prices by Day of the Week

Friday is usually the cheapest day to fly to ASM, and Wednesday the cheapest day to fly back into ONT. Mondays are the most expensive days to fly to Asmara, and Thursdays are the most expensive days to return to Ontario. Selecting flights on the least expensive days could save you up to $8918 (73%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Friday and returning a week later will cost an average of $2675. Return trip prices are from the ASM to ONT flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ONT to ASM can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 16 hour 38 minutes may not be realistic.


Flight Hacking ONT to ASM

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ONT to ASM — but Champion Traveler does!

Hack #1: Addis Ababa (ONT > ADD > ASM)

  • Price for both tickets: $1434
  • Average savings: $6797 (82.58%)

See ONT to ADD flights

Hack #2: New York, NY (ONT > JFK > ASM)

  • Price for both tickets: $1459
  • Average savings: $6772 (82.27%)

See ONT to JFK flights

Hack #3: Washington, DC (ONT > IAD > ASM)

  • Price for both tickets: $1466
  • Average savings: $6765 (82.19%)

See ONT to IAD flights


Flight Questions Answered

Still have questions about flying from ONT to ASM? We’ve got answers.

Which airlines fly this route?

You can find 13 major airlines flying this route most often: Air France, Alaska, American, Austrian, British Airways, Brussels Airlines, Delta, EgyptAir, El Al, Ethiopian, Lufthansa, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from Asmara International Airport to Ontario International Airport?

The distance between the two airports is roughly 8692 miles or 13988 kilometers.

How long does it take to fly from ONT to ASM?

The real-world flight time for a nonstop ONT to ASM flight is about 16 hour 38 minutes.

How many flights go between Ontario, CA and Asmara?

It depends on the day of the week and the date, but a typical day might have around 4 available flights from ONT to ASM.


Airport Location Info


Departing Airport

Origination codeONT
Origination airport nameOntario International Airport
CityOntario, CA
Countrythe United States

Return Airport

Destination codeASM
Destination airport nameAsmara International Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.