£317 Cheap Delta flights from Salt Lake City to Ontario Intl. Airport (SLC→ONT)

View £317 flight on Wed, 13 May 2026Opens in a new window

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Delta flights from Salt Lake City to Ontario Intl. Airport (SLC→ONT)

Prices were available within the past 7 days and start at £317 for one-way flights and £383 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 13 May - Wed, 20 May
SLC
Salt Lake City
ONT
Ontario
£383 Return, found 3 days ago
£383
Return
found 3 days ago
Select Delta flight, departing Wed, 13 May from Salt Lake City to Ontario, returning Wed, 20 May, priced at £383 found 3 days ago
Delta
Wed, 13 May - Wed, 20 May
SLC
Salt Lake City
ONT
Ontario
£413 Return, found 3 days ago
£413
Return
found 3 days ago
Select Delta flight, departing Wed, 13 May from Salt Lake City to Ontario, returning Wed, 20 May, priced at £413 found 3 days ago
Delta
Wed, 13 May - Wed, 20 May
SLC
Salt Lake City
ONT
Ontario
£442 Return, found 3 days ago
£442
Return
found 3 days ago
Select Delta flight, departing Wed, 13 May from Salt Lake City to Ontario, returning Wed, 20 May, priced at £442 found 3 days ago

Frequently asked questions

How much is a Delta Air Lines flight from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
Finding cheap one-way Delta Air Lines flights from SLC to ONT from £317 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our affordable return fares from £383 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SLC to ONT with Delta Air Lines?
Look for one-way or return flights to Ontario in January or April. You could find an affordable fare with Delta Air Lines during these off-peak travel months.
Does Delta Air Lines fly nonstop from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
Delta Air Lines operates direct flights from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT), with 20 departures every week. Just choose the "Nonstop" and "Airline" filters while searching on Expedia to show all direct Delta Air Lines flights to ONT.
How long does it take to fly from SLC to ONT with Delta Air Lines?
On average, it takes 1h 55m to fly nonstop from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT) with Delta Air Lines.
Which day of the week has the most Delta Air Lines flights from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
If you're looking for flexibility, Saturday offers the most choice for Delta Air Lines flights from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT). You can pick from 3 different departures.
What airports does Delta Air Lines fly into in Ontario?
Delta Air Lines flights from Salt Lake City Intl. Airport (SLC) to Ontario land at Los Angeles - Ontario Intl. Airport (ONT), Los Angeles Intl. Airport (LAX) and John Wayne Airport (SNA). The main Ontario hub for this airline is ONT. It's always worth checking out flights landing at other nearby airports on Expedia as they may have lower prices.
What type of plane does Delta Air Lines fly from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
For the Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT) route, Delta Air Lines typically operates Boeing 737-800 and Boeing 737-900 planes. Don't forget that last-minute changes are possible for operational reasons, so your flight may be on a different aircraft.
Can I change or cancel my Delta Air Lines flight from Salt Lake City Intl. Airport (SLC) to Los Angeles - Ontario Intl. Airport (ONT)?
Changes are usually free within 24 hours of making a booking, but your airline may add a charge after that time. For more details about altering your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to adjust your plans without additional charges, tick the "Changes included" or "No cancel fee" filter when organising your next trip.

Travel information

Origin airport
Salt Lake City Intl.
Destination airport
Ontario Intl. Airport
Distance
890 km
Average flight time
1 hour 10 mins

Explore a world of travel with Expedia

*Available to Expedia members.