$357+ Cheap flights from Champaign to San Francisco (CMI - SFO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
CMI — SFO
Jun 16 — Jun 231
Round-trip
1 adult, Economy
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Find cheap flights from Champaign to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Champaign to San Francisco
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Best
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Cheapest flights from Champaign to San FranciscoExplore the most affordable flight options available from Champaign to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.
Explore the most affordable flight options available from Champaign to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.
This American Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:33 am
CMI
- SFO
1 stop7h 41m
American Airlines
Wed 6/35:23 am
SFO
- CMI
1 stop6h 52m
American Airlines
Deal found 5/15![American Airlines logo]()
$480
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:46 pm
CMI
- SFO
1 stop8h 15m
American Airlines
Tue 6/95:23 am
SFO
- CMI
1 stop6h 52m
American Airlines
Deal found 5/13![American Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:00 am
CMI
- SFO
1 stop8h 13m
American Airlines
Wed 8/195:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 5/16![American Airlines logo]()
$510
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:00 am
CMI
- SFO
2 stops11h 02m
American Airlines
Tue 8/187:00 am
SFO
- CMI
2 stops11h 27m
American Airlines
Deal found 5/16![American Airlines logo]()
$521
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/32:46 pm
CMI
- SFO
1 stop6h 53m
American Airlines
Sun 7/125:29 am
SFO
- CMI
1 stop6h 47m
American Airlines
Deal found 5/13![American Airlines logo]()
$528
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:43 pm
CMI
- SFO
1 stop7h 15m
American Airlines
Wed 6/1712:36 pm
SFO
- CMI
1 stop7h 25m
American Airlines
Deal found 5/13![American Airlines logo]()
$561
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/232:46 pm
CMI
- SFO
1 stop8h 24m
American Airlines
Sun 7/2612:30 pm
SFO
- CMI
1 stop7h 29m
American Airlines
Deal found 5/13![American Airlines logo]()
$574
Best flights from Champaign to San FranciscoDiscover carefully curated flight deals from Champaign to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
Discover carefully curated flight deals from Champaign to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
This American Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:33 am
CMI
- SFO
2 stops10h 33m
American Airlines
Wed 6/312:36 pm
SFO
- CMI
1 stop7h 25m
American Airlines
Deal found 5/15![American Airlines logo]()
$486
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:46 pm
CMI
- SFO
1 stop8h 15m
American Airlines
Tue 6/95:23 am
SFO
- CMI
1 stop6h 52m
American Airlines
Deal found 5/13![American Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:40 pm
CMI
- SFO
1 stop7h 08m
American Airlines
Tue 8/185:48 am
SFO
- CMI
2 stops12h 39m
American Airlines
Deal found 5/16![American Airlines logo]()
$516
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:00 am
CMI
- SFO
2 stops11h 02m
American Airlines
Tue 8/187:00 am
SFO
- CMI
2 stops11h 27m
American Airlines
Deal found 5/16![American Airlines logo]()
$521
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:43 pm
CMI
- SFO
1 stop7h 15m
American Airlines
Wed 6/178:15 am
SFO
- CMI
2 stops11h 46m
American Airlines
Deal found 5/13![American Airlines logo]()
$567
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/232:46 pm
CMI
- SFO
1 stop8h 24m
American Airlines
Sun 7/2612:30 pm
SFO
- CMI
1 stop7h 29m
American Airlines
Deal found 5/13![American Airlines logo]()
$574
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:09 am
CMI
- SFO
1 stop9h 32m
American Airlines
Tue 8/188:08 am
SFO
- CMI
2 stops10h 19m
American Airlines
Deal found 5/16![American Airlines logo]()
$580
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:00 am
CMI
- SFO
2 stops14h 25m
American Airlines
Wed 8/195:30 am
SFO
- CMI
1 stop6h 45m
American Airlines
Deal found 5/16![American Airlines logo]()
$580
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:33 am
CMI
- SFO
1 stop9h 30m
American Airlines
Mon 6/111:25 am
SFO
- CMI
1 stop8h 36m
American Airlines
Deal found 5/12![American Airlines logo]()
$620
Last-minute flights from Champaign to San FranciscoDiscover last-minute flight deals from Champaign to San Francisco. Data last updated May 17, 2026 and is based on user searches.
Discover last-minute flight deals from Champaign to San Francisco. Data last updated May 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:46 pm
CMI
- SFO
1 stop9h 52m
American Airlines
Wed 6/35:23 am
SFO
- CMI
1 stop6h 52m
American Airlines
Deal found 5/12![American Airlines logo]()
$590
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:33 am
CMI
- SFO
2 stops13h 33m
American Airlines
Sat 6/66:56 pm
SFO
- CMI
2 stops14h 07m
American Airlines
Deal found 5/12![American Airlines logo]()
$601
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:46 pm
CMI
- SFO
1 stop8h 15m
American Airlines
Tue 6/95:23 am
SFO
- CMI
1 stop6h 52m
American Airlines
Deal found 5/13![American Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:33 am
CMI
- SFO
1 stop9h 30m
American Airlines
Mon 6/111:25 am
SFO
- CMI
1 stop8h 36m
American Airlines
Deal found 5/12![American Airlines logo]()
$620
This American Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:33 am
CMI
- SFO
1 stop7h 41m
American Airlines
Wed 6/35:23 am
SFO
- CMI
1 stop6h 52m
American Airlines
Deal found 5/15![American Airlines logo]()
$480
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:43 pm
CMI
- SFO
1 stop7h 15m
American Airlines
Wed 6/1712:36 pm
SFO
- CMI
1 stop7h 25m
American Airlines
Deal found 5/13![American Airlines logo]()
$561
One-way flights from Champaign to San FranciscoSearch for one-way flight options from Champaign to San Francisco. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
Search for one-way flight options from Champaign to San Francisco. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:36 pm
CMI
- SFO
1 stop16h 29m
American Airlines
Deal found 5/16![American Airlines logo]()
$357
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:28 pm
CMI
- SFO
1 stop16h 56m
American Airlines
Deal found 5/17![American Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1311:35 am
CMI
- SFO
1 stop14h 22m
American Airlines
Deal found 5/15![American Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:29 am
CMI
- SFO
1 stop9h 29m
American Airlines
Deal found 5/17![American Airlines logo]()
$429
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:33 am
CMI
- SFO
1 stop7h 40m
American Airlines
Deal found 5/13![American Airlines logo]()
$433
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:41 am
CMI
- SFO
2 stops12h 41m
American Airlines
Deal found 5/13![American Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:48 pm
CMI
- SFO
1 stop27h 16m
American Airlines
Deal found 5/13![American Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:29 am
CMI
- SFO
2 stops10h 05m
American Airlines
Deal found 5/16![American Airlines logo]()
$464
Find flight deals from Champaign to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Champaign (CMI) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $480 (American Airlines) |
One-way from | $357 (American Airlines) |
Popular in | November |
Cheapest in | May |
Average price | $348 |
Cheapflights Fare Finder
Customize your flight search to find flights from Champaign to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 17, 2026.
Use the filters below to find and compare flights from Champaign to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Sat 5/30
7:33 am-4:06 pm
2 stops10h 33m
San Francisco
Wed 6/3
12:36 pm-10:01 pm
1 stop7h 25m
$486
Quickest round-trip
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 5/27
2:46 pm-9:01 pm
1 stop8h 15m
San Francisco
Tue 6/9
5:23 am-2:15 pm
1 stop6h 52m
$505
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Sat 8/15
6:40 pm-11:48 pm
1 stop7h 08m
San Francisco
Tue 8/18
5:48 am-8:27 pm
2 stops12h 39m
$516
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 8/12
7:00 am-4:02 pm
2 stops11h 02m
San Francisco
Tue 8/18
7:00 am-8:27 pm
2 stops11h 27m
$521
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Wed 6/10
6:43 pm-11:58 pm
1 stop7h 15m
San Francisco
Wed 6/17
8:15 am-10:01 pm
2 stops11h 46m
$567
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Thu 7/23
2:46 pm-9:10 pm
1 stop8h 24m
San Francisco
Sun 7/26
12:30 pm-9:59 pm
1 stop7h 29m
$574
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 8/14
6:09 am-1:41 pm
1 stop9h 32m
San Francisco
Tue 8/18
8:08 am-8:27 pm
2 stops10h 19m
$580
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 8/14
7:00 am-7:25 pm
2 stops14h 25m
San Francisco
Wed 8/19
5:30 am-2:15 pm
1 stop6h 45m
$580
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Thu 5/28
7:33 am-3:03 pm
1 stop9h 30m
San Francisco
Mon 6/1
11:25 am-10:01 pm
1 stop8h 36m
$620
Cheapest one-way
ChampaignSan Francisco
CMI - SFO
CMISFO
Champaign University-Willard
Fri 7/24
6:28 pm-9:24 am
1 stop16h 56m
$392
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Champaign to San Francisco
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Champaign to San Francisco in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Champaign-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Champaign-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Champaign-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Champaign-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Champaign-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Champaign to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Champaign with our price prediction graph.
CMI-SFO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Champaign to San Francisco
What is the cheapest month to book a flight from Champaign to San Francisco?
Currently, May is the cheapest month in which you can book a flight from Champaign to San Francisco (average of $348). Flying from Champaign to San Francisco in November is currently the most expensive (average of $798). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Champaign to San Francisco?
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated May 17, 2026.
Get a feel of what it's like to fly with American Airlines from Champaign to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Food
6.4
Entertainment
6.9
Comfort
7.2
Crew
7.9
Overall
7.1
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Boarding
7.5
Food
6.4
Entertainment
6.9
Comfort
7.2
Crew
7.9
Overall
7.1
Reviews
1 / 20
4.0
OkayElizabeth,Mar 2026
ORD - MIA
Related info for your journey
Find useful and relevant information for your journey from Champaign to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
San Bruno
Watsonville
San Ramon
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
Vallejo
San Lorenzo
Davis
Emeryville
Manteca
Elk Grove
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Champaign and San Francisco flights
Browse other Champaign and San Francisco flight options. Last updated on May 17, 2026.
Other flights from Champaign
Browse through other flights departing from Champaign. Flights are based on user searches made on Cheapflights and were last updated on May 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 17, 2026.
Top airline flying from Champaign to San Francisco
Discover the top airline that operate flights from Champaign to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$338 | Average$478 | FlexibilityNo cancel fee | On-time71% |