Cheap flights To Knox (RFD) from $35

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Cheap Flights to Knox from $35 One Way, $58 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Sat, May 23 - Thu, May 28
DEN
Denver Intl.
ORD
O'Hare Intl.
$58 Roundtrip, found 13 hours ago
$58
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Sat, May 23 from Denver Intl. to O'Hare Intl., returning Thu, May 28, priced at $58 found 13 hours ago
Tue, Jun 2 - Tue, Jun 9
ATL
Hartsfield-Jackson Atlanta Intl.
MDW
Midway Intl.
$70 Roundtrip, found 15 hours ago
$70
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Tue, Jun 2 from Hartsfield-Jackson Atlanta Intl. to Midway Intl., returning Tue, Jun 9, priced at $70 found 15 hours ago
Wed, May 20 - Sun, May 24
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$78 Roundtrip, just found
$78
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 20 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Sun, May 24, priced at $78 just found
Sat, Aug 22 - Sat, Aug 29
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$108 Roundtrip, found 12 hours ago
$108
Roundtrip
found 12 hours ago
Select Spirit Airlines flight, departing Sat, Aug 22 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Sat, Aug 29, priced at $108 found 12 hours ago
Tue, Jun 16 - Wed, Jun 17
MSP
Minneapolis - St. Paul Intl.
MDW
Midway Intl.
$140 Roundtrip, found 17 hours ago
$140
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Jun 16 from Minneapolis - St. Paul Intl. to Midway Intl., returning Wed, Jun 17, priced at $140 found 17 hours ago
Tue, Jun 16 - Wed, Jun 17
MSP
Minneapolis - St. Paul Intl.
ORD
O'Hare Intl.
$140 Roundtrip, found 17 hours ago
$140
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Tue, Jun 16 from Minneapolis - St. Paul Intl. to O'Hare Intl., returning Wed, Jun 17, priced at $140 found 17 hours ago
Tue, Jun 16 - Wed, Jun 17
MSP
Minneapolis - St. Paul Intl.
MDW
Midway Intl.
$140 Roundtrip, found 17 hours ago
$140
Roundtrip
found 17 hours ago
Select Southwest Airlines flight, departing Tue, Jun 16 from Minneapolis - St. Paul Intl. to Midway Intl., returning Wed, Jun 17, priced at $140 found 17 hours ago
Tue, Jun 16 - Wed, Jun 17
MSP
Minneapolis - St. Paul Intl.
ORD
O'Hare Intl.
$140 Roundtrip, found 17 hours ago
$140
Roundtrip
found 17 hours ago
Select United flight, departing Tue, Jun 16 from Minneapolis - St. Paul Intl. to O'Hare Intl., returning Wed, Jun 17, priced at $140 found 17 hours ago
Wed, May 20 - Thu, May 21
MSP
Minneapolis - St. Paul Intl.
RFD
Greater Rockford
$157 Roundtrip, found 4 days ago
$157
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, May 20 from Minneapolis - St. Paul Intl. to Greater Rockford, returning Thu, May 21, priced at $157 found 4 days ago
Wed, May 13 - Tue, May 19
DEN
Denver Intl.
MDW
Midway Intl.
$164 Roundtrip, found 3 days ago
$164
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, May 13 from Denver Intl. to Midway Intl., returning Tue, May 19, priced at $164 found 3 days ago

Knox Flight Information

Traveling To
Knox
Destination Airport IATA Code
RFD
Number of Airlines Serving
Airlines
Frontier Airlines, Spirit Airlines, American Airlines, Southwest Airlines, Delta, Sun Country Airlines, United
Flight Price
$58
Earliest Departing Flight
Latest Departing Flight

Book Your Flight & Hotel Together & Save

Knox economy flight packages

Price found within the past 48 hours. Click for updated prices.
Sonesta Chicago O'Hare Airport Rosemont
3.0-star property

Sonesta Chicago O'Hare Airport Rosemont

Jun 13 - Jun 16

3 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $444, price is now $309 per person
$309
per person
found 1 day ago
Level Chicago – Old Town
4.0-star property

Level Chicago – Old Town

Jun 25 - Jun 29

4 night stay

Atlanta (ATL) to Chicago (ORD)

Spirit Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,320, price is now $845 per person
$845
per person
found 1 day ago
Hotel Felix River North/Magnificent Mile
4.0-star property

Hotel Felix River North/Magnificent Mile

Jun 5 - Jun 7

2 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $995, price is now $704 per person
$704
per person
found 1 day ago
Don't see what you're looking for?
See all available trips from Atlanta to Knox
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Knox premium economy flight packages

Price found within the past 48 hours. Click for updated prices.
Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

9.4/10 Exceptional! (3,991 reviews)

Jun 12 - Jun 14

2 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Non-stop roundtrip • PremiumEconomy
Price was $1,133, price is now $768 per person
$768
per person
found 16 hours ago
Great location, clean, and great breakfast buffet

Reviewed on Mar 8, 2026

Level Chicago – Old Town
4.0-star property

Level Chicago – Old Town

9/10 Wonderful! (466 reviews)

Jun 12 - Jun 14

2 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Non-stop roundtrip • PremiumEconomy
Price was $1,225, price is now $933 per person
$933
per person
found 16 hours ago
We always love staying here. Such great service and nice accommodations.

Reviewed on Nov 20, 2025

Trump International Hotel & Tower Chicago
5.0-star property

Trump International Hotel & Tower Chicago

9.4/10 Exceptional! (1,851 reviews)

Jun 12 - Jun 14

2 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Non-stop roundtrip • PremiumEconomy
Price was $1,274, price is now $995 per person
$995
per person
found 16 hours ago
Food was amazing and the staff was amazing. Room was incredible! Felt like we were royalty on our visit!

Reviewed on Oct 13, 2025

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Knox first class flight packages

Price found within the past 48 hours. Click for updated prices.
Hilton Garden Inn Chicago Downtown Riverwalk
3.0-star property

Hilton Garden Inn Chicago Downtown Riverwalk

9/10 Wonderful! (1,909 reviews)

Jun 19 - Jun 21

2 night stay

Houston (HOU) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $1,368, price is now $1,203 per person
$1,203
per person
found 11 hours ago
Excellent location. 30 minutes walking to most major attractions. Parking is not great but there are plenty of places to park for a price. The location itself is very clean and the staff is very helpful. Small messages asking how your day is going is a nice touch. Hands down the best feature is its central location to major events and tourist spots. I would highly recommend it just for its central location.

Reviewed on Apr 5, 2026

Level Chicago – Old Town
4.0-star property

Level Chicago – Old Town

9/10 Wonderful! (466 reviews)

Jun 19 - Jun 21

2 night stay

Houston (HOU) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $1,491, price is now $1,253 per person
$1,253
per person
found 11 hours ago
We always love staying here. Such great service and nice accommodations.

Reviewed on Nov 20, 2025

Silversmith Hotel Chicago Downtown
4.0-star property

Silversmith Hotel Chicago Downtown

9.2/10 Wonderful! (2,245 reviews)

Jun 19 - Jun 21

2 night stay

Houston (HOU) to Chicago (ORD)

American Airlines • Roundtrip • FirstClass
Price was $1,336, price is now $1,206 per person
$1,206
per person
found 11 hours ago
The staff were amazing , very friendly and made us feel at home.

Reviewed on Oct 23, 2025

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Knox

Save more on flights to Knox while making top-quality travel arrangements. At Orbitz we provide access to low cost flights, hotel lodgings and other discounts, along with superior customer service and an unbeatable satisfaction guarantee.

Compare And Book Discount Flights to Knox

Now it is easier than ever to find a discount Knox flight. Orbitz users can compare airfares for both international and domestic flights and can quickly determine the best hotels and car rental companies to use. You may also check out hotel and other reviews along with a number of travel tips, making your visit to an unfamiliar destination enjoyable and hassle-free.

Use Your Mobile Phone To Secure A Low Cost Flight To Knox

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Boost Your Frequent Flyer Rewards

You even retain your ability to earn frequent flier points and rewards when purchasing your tickets with Orbitz for Knox flights. Enter your frequent flyer information into your Orbitz profile to start earning rewards.

You will find that Orbitz is a very low cost, yet very effective travel planner. Free updates via your mobile phone device will help to keep you and all relevant parties informed of important flight updates. With access to unbeatable sales on all travel essentials, Orbitz makes booking an affordable flight to Knox a breeze.

Frequently asked questions

Which airlines fly to Knox?
Reserving a flight to Knox is easy — simply pick from 20 airlines that service South Bend Intl. Airport (SBN). When you've arranged your itinerary and packed your luggage, these top domestic carriers will happily welcome you on board:

  • United Airlines - 87 flights to Knox per month
  • American Airlines - 67 flights to Knox per month
  • Delta - 57 flights to Knox per month

How much is a flight to Knox?
Plenty of incredible deals were up for the taking this week, with round-trip flights to Knox fluctuating between $58 and $164. But it was passengers arriving in from Denver (DEN) who snapped up the biggest bargains. One-way fares to Knox started at a low $35.
How to book the cheapest flight to Knox?
Landing cheap flights to Knox is as easy as booking your ticket with Orbitz. But if you'd like to make sure you're walking away with the best flight deals around, here are a few tips to keep your wallet happy:

  • Depending on your departure point, click on the 'Nearby airports' function (located under the departure and arrival options). Sometimes, alternative departure points offer more value for money.
  • Similarly, click on the 'Show flexible dates' option to view the prices for days around your selected departure. It's possible to score cheaper flight deals if your itinerary is flexible.
  • You can also select the 'Show options' function to filter results for your preferred airline, seating class, nonstop flights and refundable flights. Under 'Sort & Filter' to the left, you can even pick the time of day you'd prefer to fly.
  • Book your fare as soon as you know your travel dates. While you can get lucky on occasion, airfares rarely fall in price as your departure date gets closer.
  • Consider combining your flights, hotels and car rentals into an Orbitz package deal to save cash.
  • Whenever possible, avoid flying in high seasons. Airfares significantly increase during school breaks, summer and around other vacation times like Easter and Thanksgiving.

What is the best time to book a flight to Knox?
Book in January, February or August for competitively priced tickets to Knox. Once you've located a bargain, snap it up — cheap flights will appear and vanish in the click of a mouse.
What day of the week is the cheapest to book a flight to Knox?
In general, Tuesdays, Wednesdays and Saturdays are the cheapest days to book a flight to Knox. If you want unbeatable airfares, search across those days and you just might pick up a great flight deal.
What is the cheapest day of the week to fly to Knox?
According to Orbitz data from 2020, Monday is generally the best day of the week for cheap flights to Knox. Tuesday also offers wallet-friendly fares, while Saturday has the highest ticket prices. Although leaving at the weekend may be easier to organize, you'll have more cash in your pocket to play with if you take off earlier in the week.
What is the cheapest month to fly to Knox?
We won't keep you guessing — based on Orbitz data, August is generally the most inexpensive month to fly. Perfect for those who need a weekend getaway or simply escape from it all before the weather changes. The costliest time to fly is the height of summer, with airfares peaking in June.
Which airlines allow free cancellation?
Orbitz makes it a cinch to find carriers that offer flexibility. Simply select "Filter by flexible change policies" when searching for your flights and bada bing, bada boom! You'll see options that include free cancellation, no change fees and of course, the very best price.
What do I need for the flight to Knox?
Flying can be a joy with a bit of pre-planning! Make your journey a hassle-free one with the following handy hints:

  • Before you step on to the plane, you'll need to present a valid form of government ID, such as your passport. You'll also need your boarding pass. If you're traveling with children, check with your airline about which documents they may need.
  • To keep you busy on the short hop to Knox, download your favorite songs or restock the audiobook library on your smartphone. Food can also be a welcome distraction while in the air, so take some snacks.
  • No matter the weather outside (or how long the flight), plane cabins can get a bit chilly. Bring a sweater on board to stop the goose bumps.

How do I get cheap first-class/business deals to Knox?
Smart travelers have a way of finding business or first-class flights to Knox without the steep price tag. Be like them with these helpful hints:

  • Be flexible. By being open to various travel dates, you'll have a better chance of spotting a sale on your airfares.
  • Many budget carriers these days offer excellent business or premium-class seating without the hefty fees.
  • Bid for an upgrade in online auctions or upgrade your ticket with your frequent flyer points.

More to Explore

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.