ONT - MLU

$494 Find Cheap Flights from Ontario to Monroe - Compare and Save

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Everything you should know

Cheapest round-trip
$494
Typical prices: $378-$666
Delta
Sat 10/27Sat 11/10
ONT - MLU • 1 stop
When to travel
November
Cheapest • 15% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $427 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 6h 03m (one-way)
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Flight Deals

Cheap Flights from Ontario to Monroe (ONT-MLU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Monroe

Tue, Oct 27 - Tue, Nov 10
Delta Logo
7:07 am - 5:14 pmONT  Ontario-MLU Monroe Huenefeld
8h 07m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:06 pm - 11:49 pmMLU  Monroe Huenefeld-ONT Ontario
12h 43m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$494Delta
Thu, Oct 29 - Sun, Nov 1
American Airlines Logo
12:43 pm - 10:36 pmONT  Ontario-MLU Monroe Huenefeld
7h 53m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 9:40 amMLU  Monroe Huenefeld-ONT Ontario
5h 40m1 stop Dallas/Fort Worth
$538American Airlines
Tue, Oct 27 - Tue, Nov 10
Delta Logo
6:00 am - 5:14 pmONT  Ontario-MLU Monroe Huenefeld
9h 14m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
1:06 pm - 11:49 pmMLU  Monroe Huenefeld-ONT Ontario
12h 43m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$549Delta
Thu, Oct 29 - Sun, Nov 1
Delta Logo
12:16 pm - 10:09 pmONT  Ontario-MLU Monroe Huenefeld
7h 53m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:05 pm - 10:11 pmMLU  Monroe Huenefeld-ONT Ontario
11h 06m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$589Delta
Thu, Oct 29 - Sun, Nov 1
Delta Logo
9:45 am - 10:09 pmONT  Ontario-MLU Monroe Huenefeld
10h 24m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
1:05 pm - 10:11 pmMLU  Monroe Huenefeld-ONT Ontario
11h 06m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$594Delta
Thu, Oct 29 - Sun, Nov 1
American Airlines Logo
7:34 pm - 1:18 pmONT  Ontario-MLU Monroe Huenefeld
15h 44m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
American Airlines Logo
1:43 pm - 6:42 pmMLU  Monroe Huenefeld-ONT Ontario
6h 59m1 stop Dallas/Fort Worth
$638American Airlines
Tue, Oct 27 - Tue, Nov 10
Delta Logo
12:16 pm - 10:09 pmONT  Ontario-MLU Monroe Huenefeld
7h 53m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:06 pm - 8:54 pmMLU  Monroe Huenefeld-ONT Ontario
9h 48m1 stop Atlanta Hartsfield-Jackson
$678Delta
Thu, Oct 29 - Sun, Nov 1
American Airlines Logo
7:34 pm - 1:18 pmONT  Ontario-MLU Monroe Huenefeld
15h 44m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
American Airlines Logo
6:00 am - 3:35 pmMLU  Monroe Huenefeld-ONT Ontario
11h 35m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$801American Airlines
Sun, Sep 27 - Thu, Oct 1
Delta Logo
12:19 pm - 10:17 pmONT  Ontario-MLU Monroe Huenefeld
7h 58m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:41 pm - 10:24 pmMLU  Monroe Huenefeld-ONT Ontario
6h 43m1 stop Atlanta Hartsfield-Jackson
$934Delta
Sun, Sep 27 - Thu, Oct 1
American Airlines Logo
8:25 am - 6:14 pmONT  Ontario-MLU Monroe Huenefeld
7h 49m1 stop Dallas/Fort Worth
American Airlines Logo
1:44 pm - 10:43 pmMLU  Monroe Huenefeld-ONT Ontario
10h 59m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$940American Airlines
Booking Insights

Price, demand and travel trends for Ontario to Monroe flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Ontario to Monroe with more confidence.

How much is a round-trip flight from Ontario to Monroe?

Round-trip flights from Ontario to Monroe start at $494. Prices are typical for this route right now, with typical round-trip fares ranging from $378 to $666. The lowest price found in the past 5 days was $494 on Delta.

What's the cheapest day of the week to fly from Ontario to Monroe?

Monday is the cheapest day of the week to fly from Ontario to Monroe, it is 15% cheaper than the average day. Wednesday is the most expensive day with flight prices 95% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Ontario to Monroe flights

Low season

January
Most popular time to fly with an average 40% increase in price.

When to book flights from Ontario to Monroe

Are your dates flexible? Find out the best times to travel from Ontario to Monroe based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Monroe flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Ontario to Monroe?

    Flights from Ontario to Monroe usually depart from Ontario (ONT) and arrive at Monroe Huenefeld (MLU).

  • Which airports do connecting flights from Ontario to Monroe pass through?

    Connecting flights from Ontario to Monroe most commonly pass through:

    • Dallas/Fort Worth (DFW) - 96% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 4% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from Ontario to Monroe?

    Yes. Being flexible with your travel dates can save you up to 57% on the Ontario to Monroe route. Monday is the cheapest departure day at $378 round-trip on average, while Wednesday is the most expensive at $865, a difference of $487. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Ontario to Monroe?

    There are currently no nonstop flights available from Ontario to Monroe. Flights with 1 layover take between 6h 03m and 7h 27m in total, depending on the connection.

  • Do I need a passport to fly from Ontario to Monroe?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Ontario to Monroe changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $494 to $993. That means the highest observed fare was about 2x higher than the lowest one.

  • How much time can I save by choosing a different layover airport from Ontario to Monroe?

    Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 6h 03m, compared with 7h 27m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Ontario and Monroe?

    Monroe is 2 hours ahead of Ontario (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Monroe Huenefeld Airport (MLU)?

    Monroe Huenefeld Airport (MLU) hosts 5 major car rental companies, with daily rates starting from around $44 for economy cars. Top options include:
    • Enterprise Rent-A-Car
    • National
    • Avis
    • Hertz
    • Budget

  • How much should I expect to pay for a Ontario to Monroe flight?

    Round-trip flights from Ontario to Monroe range from $378 to $666, with an average of $443 over the past 12 months. Anything below $378 counts as a good deal.

Your guide to booking Ontario to Monroe flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Wednesday. On this route, Monday flights average $378 - about $487 less than Wednesday (56% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Monroe trip for November. Fares historically average $378 round-trip in that month - typically $487 less than the most expensive month, which is May (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Monroe Huenefeld Airport.
    - Courtyard by Marriott Monroe Airport
    - Hampton Inn and Suites Monroe
    - TownePlace Suites by Marriott Monroe

More options for your flight from Ontario to Monroe

Complete your trip to Monroe with a hotel stay or car rental

Car rentals in Monroe
Hotels in Monroe