$74 Cheap flight deals from Seattle (SEA) to Crestline (ONT)
Earn rewards on top of your airline miles with Orbitz Rewards
Many airlines offer flexible change policies
Sign up to receive text alerts about your trip
This Weekend's Flight Deals from Seattle to Crestline
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $74 One Way, $148 Round Trip from Seattle to Crestline
Prices starting at $148 for return flights and $74 for one-way flights to Crestline were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Crestline economy flight packages
The LEEF Hotel
Jul 2 - Jul 4
Seattle (SEA) to Los Angeles (LAX)
Reviewed on May 13, 2025
Claremont Resort & Club
Jul 18 - Jul 21
Seattle (SEA) to Oakland (OAK)
Reviewed on May 25, 2024
Langham Huntington, Pasadena, Los Angeles
Jul 10 - Jul 13
Seattle (SEA) to Los Angeles (LAX)
Los Angeles (LAX) to Seattle (SEA)
Reviewed on Apr 28, 2025
Crestline packages with premium economy flights
Grand Legacy At the Park
Jul 13 - Jul 19
Seattle (SEA) to Los Angeles (LAX)
Reviewed on May 16, 2025
Pacific Edge Hotel
Jul 13 - Jul 19
Seattle (SEA) to Orange County (SNA)
Reviewed on May 16, 2025
Crestline first class flight packages
San Francisco Proper Hotel
Jul 20 - Jul 24
Seattle (SEA) to San Francisco (SFO)
San Francisco (SFO) to Seattle (SEA)
Reviewed on Oct 7, 2023
The LEEF Hotel
Jul 7 - Jul 13
Seattle (SEA) to Los Angeles (LAX)
Los Angeles (LAX) to Seattle (SEA)
Reviewed on May 13, 2025
Fairmont Miramar Bungalows
Jul 7 - Jul 13
Seattle (SEA) to Los Angeles (LAX)
Los Angeles (LAX) to Seattle (SEA)
Reviewed on Mar 5, 2022
More About Flying To Crestline from Seattle
Route Information for Flights from Seattle to Crestline
Origin Airport IATA Code | SEA |
|---|---|
Destination Airport IATA Code | ONT |
Distance | |
Direct Flight Airlines | |
Earliest Flight Arrival | |
Latest Flight Arrival |
Seattle to Crestline
Orbitz gives you great deals on your flights from Seattle to Crestline. If you also need a discount car rental or a cheap hotel room after you arrived at your destination, Orbitz has you covered.
We Offer Great Travel Deals and Discounts
When you book flights from Seattle to Crestline with Orbitz for, you can be assured that you are getting the lowest price possible. Orbitz works constantly with our airline partners to ensure guaranteed low prices on Seattle to Crestline flights for your trip—whether you are traveling for business or for fun with your family.
Enjoy Savings on Last-Minute Flights
If you are looking for a discount price on last-minute flights from Seattle to Crestline, chances are that Orbitz can offer you a deal that will save you lots of money. Whether you just want to get away for the weekend or go on a vacation lasting weeks, Orbitz can help you find the best deals on Seattle to Crestline flights that fit your budget and your itinerary for the perfect trip.
Full-Service Mobile Apps
Need more mobility when it comes to travel planning? Orbitz has easy-to-use mobile apps for iPhone, iPad, and Android, to help the traveler on the go. Not only can use the apps to find huge savings on Seattle to Crestline flights wherever you are, but you can also check out and book discount hotel rooms too. The apps will also keep you up-to-date when it’s time to fly. Get easy access to your itinerary for flights from Seattle to Crestline and review gate and baggage claim details too.
Flights from Seattle
- Seattle to Los Angeles
- Seattle to New York
- Seattle to Chicago
- Seattle to Dallas
- Seattle to San Francisco
- Seattle to Orlando
- Seattle to Houston
- Seattle to Atlanta
- Seattle to Sacramento
- Seattle to London
- Seattle to Bangkok
- Seattle to Paris
- Seattle to Fort Lauderdale
- Seattle to Washington
- Seattle to Oakland
- Seattle to Beijing
- Seattle to Santa Ana
- Seattle to Bentonville - Fayetteville
- Seattle to Buenos Aires
- Seattle to Bucharest
Top Trending
Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.