Cheapest€224.93
- United Airlines UA462916:254h 34m20:59Chicago MDWSeattle SEA
Door to door 7h 44mCO2 706.5 kgChanges 0Fixed, no changes
Travelling from Chicago to Seattle costs €224.93 at the cheapest and takes 7h 11m door to door at the fastest, across 1 mode and 7 operators. The route covers 2,872 km. Cheapest is by Flight, fastest is by Flight.
At a glance
- Distance
- 2,872 km
- Fastest
- 7h 11m
- Average
- 7h 28m
- Services per day
- 56
- Cheapest
- €224.93
- CO2 per passenger
- 706.5 kg
Every way to make this journey
Journey times below are door to door, so they include getting to the terminal and away from it at the other end. Fares are the cheapest we currently sell on 29 September 2026.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Flight | 7h 11m | 4h 1m | 3h 10m | €268.00 | 706.5 kg | 56 |
- 7h 11mFastest, by Flight
- €268.00Cheapest, by Flight
- 706.5 kgLowest CO2, by Flight
- 2,872 kmDistance travelled
The cheapest and the fastest on 29 September 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€233.78
- Korean Air KA315512:414h 1m16:42Chicago ORDSeattle BFI
Door to door 7h 11mCO2 706.5 kgChanges 0Fixed, no changes
Today's real departures
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modelled until our booking connectors are live.
| Operator | Service | Departs | Arrives | Takes |
|---|---|---|---|---|
| Amtrakdirect | 7 | 20:05 | 18:29 | 46h 46m |
| Amtrak1 changes | 7 | 20:05 | 18:36 | 46h 39m |
| Amtrak1 changes | 7 | 20:05 | 17:32 | 46h 20m |
| Amtrak2 changes | 305 | 22:20 | 02:55 | 53h 2m |
| Amtrak3 changes | 305 | 22:20 | 03:05 | 52h 53m |
| Chicago Transit Authority3 changes | 60 | 22:14 | 02:55 | 53h |
| Chicago Transit Authority4 changes | 60 | 22:14 | 03:05 | 52h 51m |
Prices over the next three weeks
Live from our own engine, refreshed on every request. The cheapest days for each way of travelling are marked.
| Cheapest fare by mode and day for Chicago to Seattle | Sat12 Sept | Sun13 Sept | Mon14 Sept | Tue15 Sept | Wed16 Sept | Thu17 Sept | Fri18 Sept | Sat19 Sept | Sun20 Sept | Mon21 Sept | Tue22 Sept | Wed23 Sept | Thu24 Sept | Fri25 Sept |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flight | €521.70 | €484.53 | €338.80 | €331.72 | €356.50 | €449.13 | €333.49 | €344.11 | €315.20 | €272.72 | €268.00 | €289.83 | €358.86 | €280.39 |
Cheapest day: 2026-09-29 · €224.93
Arriving in September changes what you want from a room in Seattle. It is not a thing we sell, so here is who does.
Looking for somewhere to stay in Seattle?
The search opens on Seattle with your nights already filled in, so it is one step to a real price.
Search Seattle on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Chicago to Seattle
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €289.2490 days
- €170.6560 days
- €184.8145 days
- €213.7230 days
- €256.2021 days
- €280.3914 days
- €333.497 days
- €338.803 days
- €521.701 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €170.65.
- How much it moves
- The gap between the cheapest and dearest lead time is 206 percent. The dearest point is €521.70, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Book now Fares on this route are lowest around 60 days ahead. You are inside that window.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €315.20Sun
- €272.72Mon
- €268.00Tue
- €289.83Wed
- €358.86Thu
- €280.39Fri
- €344.11Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €331.72Sept
- €241.45Oct
- €212.54Nov
- €215.49Dec
- €207.82Jan
- €178.32Feb
The route
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- How far it really runs
- The route covers 2,872 km against 2,789 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Chicago at 06:14 and the last at 20:53, across 56 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Chicago
Rail
- Chicago Union Station
- Chicago Ridge
- Chicago station
Coach
- Chicago Union Station
- Chicago & Austin Terminal
Air
- ORD
- MDW
Ferry
- Chicago Avenue
- Chicago Riverwalk
Seattle
Rail
- Seattle King Street
- Westlake
- Union Station
Coach
- Seattle King Street
- Seattle Greyhound Station
Air
- SEA
- BFI
Ferry
- Seattle
- Seattle Waterfront
Who runs this route
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From |
|---|---|
 Alaska Airlines | €229.65 |
 American Airlines | €230.83 |
| China Airlines | €230.24 |
 Delta Air Lines | €231.42 |
 Korean Air | €233.78 |
 Southwest Airlines | €231.42 |
| United Airlines | €224.93 |
What the fare is made of
Every part of the total, so the number at checkout is the number here.
| Part | Amount | Share |
|---|---|---|
| Operator fare | €183.00 | 81% |
| Taxes | €32.94 | 15% |
| Supplier fees | €7.00 | 3% |
| Our service fee | €1.99 | 1% |
| Total you pay | €224.93 | 100% |
A day in Seattle carrying a suitcase is a shorter day than it needs to be. We do not store bags.
Where to leave your bags in Seattle
Most of the points near Seattle King Street open before the first train and shut after the last one.
Check Seattle on StasherOr try Bounce
Partner links. We do not run these networks. We earn a commission on a booking, and the price is the same as going direct.
Questions about Chicago to Seattle
The questions people actually ask about this journey, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does it take to get from Chicago to Seattle?
The fastest journey from Chicago to Seattle takes 7h 11m door to door, of which 4h 1m is spent moving, on the Flight. Most services take around 7h 28m, because that average includes slower stopping services and journeys with a connection. Times include reaching the terminal and leaving it at the far end.
How much does it cost to travel from Chicago to Seattle?
The cheapest fare from Chicago to Seattle is €224.93, checked on 29 September 2026. A typical fare across the next three weeks is €371.84. Both figures are the total for one passenger, including taxes, supplier fees and our service fee, so nothing is added at checkout.
What is the cheapest way to get from Chicago to Seattle?
The cheapest way from Chicago to Seattle is by Flight, at €268.00 for one passenger on 29 September 2026. That journey takes 7h 11m door to door. Cheaper is rarely faster on this corridor, and the comparison table on this page shows what each mode costs against what it saves.
When should I book Chicago to Seattle?
Fares from Chicago to Seattle bottom out around 60 days before departure, at €170.65. Across the whole booking window the gap between the cheapest and the dearest lead time is 206 percent, measured on 29 September 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Chicago to Seattle?
Tuesday is the cheapest day to depart from Chicago to Seattle, at €268.00. That is the median of 21 priced departure days across the next three weeks, checked on 29 September 2026. Shifting a departure by one day is usually worth more than shifting the booking by one week.
Which month is cheapest for Chicago to Seattle?
February is the cheapest of the next 6 months to travel from Chicago to Seattle, at €178.32 for one passenger. Each month is priced on its fifteenth, so the comparison is like for like rather than a mix of weekends and midweek departures.
Who runs services from Chicago to Seattle?
7 operators sell services from Chicago to Seattle across 1 modes: Alaska Airlines, American Airlines, China Airlines, Delta Air Lines, Korean Air, Southwest Airlines. Journey times, fares and fare conditions differ between them, and the operator table on this page compares all of them on speed, flexibility and what is provided on board.
Is there a direct service from Chicago to Seattle?
Every service we sell from Chicago to Seattle is direct, with around 56 departures a day and a fastest journey of 7h 11m door to door. No connection is needed, so there is no missed connection risk to plan around on this corridor.
Which station or terminal do services from Chicago to Seattle use?
Services from Chicago to Seattle by Flight leave from Chicago ORD and arrive at Seattle BFI. Allow about 3h 10m in total for reaching the departure terminal and leaving the arrival one, which is already included in every door to door time on this page.
Can I change or refund a ticket from Chicago to Seattle?
0 of the 7 operators we sell from Chicago to Seattle allow a change or a refund. A change on a changeable fare costs €5.00. The operator table on this page names which is which, and the condition is shown again before you pay.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modelled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon, Distances
- On this page
- Every figure above was computed for Chicago to Seattle on 11 September 2026: 2872 km of route against 2789 km in a straight line, 56 services a day, 7 operators, a cheapest fare of €224.93, and 7h 11m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
The journey is the easy half to plan. The days in Seattle are the half people leave until last.
Anything to book in Seattle before you go?
Day trips that leave Seattle in the morning and cover a good part of United States by evening.
See Seattle on GetYourGuideOr browse Viator
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.
Other ways to make this journey
Arriving in Seattle
Leaving Seattle
- 136Places you can leave for
- 19Countries
- 50Operators
Plan a trip from here
Ask Ori for the same corridor under a different constraint, or for a longer trip that starts on it.