opinion: Justice Brennan
  delivered the opinion of the Court.
  We granted certiorari to consider whether an interlocutory order of a United States District Court denying a defendant’s motion to dismiss a damages action on the basis of a contractual forum-selection clause is immediately appealable under 28 U. S. C. § 1291 as a collateral final order. We hold that it is not.
  I
  The individual respondents were, or represent the estates of persons who were, passengers aboard the cruise ship Achille Lauro when it was hijacked by terrorists in the Mediterranean in October 1985. Petitioner Lauro Lines s.r.l., an Italian company, owns the Achille Lauro. Respondents filed suits against Lauro Lines in the District Court for the Southern District of New York to recover damages for injuries sustained as a result of the hijacking and for the wrongful death of passenger Leon Klinghoffer. Lauro Lines moved before trial to dismiss the actions, citing the'forum-selection clause printed on each passenger ticket. This clause purported to obligate the passenger to institute any suit arising in connection with the contract in Naples, Italy, and to renounce the right to sue elsewhere.
  The District Court denied petitioner’s motions to dismiss, holding that the ticket as a whole did not give reasonable notice to passengers that they were waiving the opportunity to sue in a domestic forum. Without moving for certification for immediate appeal pursuant to 28 U. S. C. § 1292(b), Lauro Lines sought to appeal the District Court’s orders. The Court of Appeals for the Second Circuit dismissed petitioner’s appeal on the ground that the District Court’s orders denying petitioner’s motions to dismiss were interlocutory and not appealable under § 1291. The court held that the orders did not fall within the exception to the rule of nonappealability carved out for collateral final orders in Cohen v. Beneficial Industrial Loan Corp., 337 U. S. 541 (1949). 844 F. 2d 50 (1988). We granted certiorari to resolve a disagreement among the Courts of Appeals. 488 U. S. 887 (1988). Compare, e. g., 844 F. 2d 50 (1988) (case below); Rohrer, Hibler & Replogle, Inc. v. Perkins, 728 F. 2d 860, 862-863 (CA7) (holding prejudgment denial of motion to dismiss on basis of forum-selection clause not to be immediately appeal-able under § 1291), cert. denied, 469 U. S. 890 (1984), with Hodes v. S. N. C. Achille Lauro ed Altri-Gestione, 858 F. 2d 905, 908 (CA3 1988), cert. dism’d, 490 U. S. 1001 (1989); Sterling Forest Associates, Ltd. v. Barnett-Range Corp., 840 F. 2d 249, 253 (CA4 1988); Farmland Industries, Inc. v. Frazier-Parrott Commodities, Inc., 806 F. 2d 848, 851 (CA8 1986) (holding such denial to be an immediately appealable collateral final order). We now affirm.
  II
  Title 28 U. S. C. § 1291 provides for appeal to the courts of appeals only from “final decisions of the district courts of the United States.” For purposes of § 1291, a final judgment is generally regarded as “a decision by the district court that ‘ends the litigation on the merits and leaves nothing for the court to do but execute the judgment.’” Van Cauwenberghe v. Biard, 486 U. S. 517, 521 (1988), quoting Catlin v. United States, 324 U. S. 229, 233 (1945). An order denying a motion to dismiss a civil action on the ground that a contractual forum-selection clause requires that such suit be brought in another jurisdiction is not a decision on the merits that ends the litigation. On the contrary, such an order “ensures that litigation will continue in the District Court.” Gulfstream Aerospace Corp. v. Mayacamas Corp., 485 U. S. 271, 275 (1988). Section 1291 thus permits an appeal only if an order denying a motion to dismiss based upon a forum-selection clause falls within the “narrow exception to the normal application of the final judgment rule [that] has come to be known as the collateral order doctrine.” Midland Asphalt Corp. v. United States, 489 U. S. 794, 798 (1989). That exception is for a “small class” of prejudgment orders that “finally determine claims of right separable from, and collateral to, rights asserted in the action, [and that are] too important to be denied review and too independent of the cause itself to require that appellate consideration be deferred until the whole case is adjudicated.” Cohen, supra, at 546. We have held that to fall within the Cohen exception, an order must satisfy at least three conditions: “It must ‘conclusively determine the disputed question,’ ‘resolve an important issue completely separate from the merits of the action,’ and ‘be effectively unreviewable on appeal from a final judgment.’” Richardson-Merrell Inc. v. Roller, 472 U. S. 424, 431 (1985), quoting Coopers & Lybrand v. Livesay, 437 U. S. 463, 468 (1978). For present purposes, we need not decide whether an order denying a dismissal motion based upon a contractual forum-selection clause conclusively determines a disputed issue, or whether it resolves an important issue that is independent of the merits of the action, for the District Court’s orders fail to satisfy the third requirement of the collateral order test.
  We recently reiterated the “general rule” that an order is “effectively unreviewable” only “where the order at issue involves ‘an asserted right the legal and practical value of which would be destroyed if it were not vindicated before trial.’” Midland Asphalt Corp., supra, at 798, quoting United States v. MacDonald, 435 U. S. 850, 860 (1978). If it is eventually decided that the District Court erred in allowing trial in this case to take place in New York, petitioner will have been put to unnecessary trouble and expense, and the value of its contractual right to an Italian forum will have been diminished. It is always true, however, that “there is value ... in triumphing before trial, rather than after it,” MacDonald, supra, at 860, n. 7, and this Court has declined to find the costs associated with unnecessary litigation to be enough to warrant allowing the immediate appeal of a pretrial order, see Richardson-Merrell Inc., supra, at 436 (“[T]he possibility that a ruling may be erroneous and may impose additional litigation expense is not sufficient to set aside the finality requirement imposed by Congress” in § 1291). Instead, we have insisted that the right asserted be one that is essentially destroyed if its vindication must be postponed until trial is completed.
  We have thus held in cases involving criminal prosecutions that the deprivation of a right not to be tried is effectively unreviewable after final judgment and is immediately appeal-able. Helstoski v. Meanor, 442 U. S. 500 (1979) (denial of motion to dismiss under the Speech or Debate Clause); Abney v. United States, 431 U. S. 651 (1977) (denial of motion to dismiss on double jeopardy grounds). See Midland Asphalt Corp., supra, at 801 (“A right not to be tried in the sense relevant to the Cohen exception rests upon an explicit statutory or constitutional guarantee that trial will not occur”) (emphasis added). Similarly, in civil cases, we have held that the denial of a motion to dismiss based upon a claim of absolute immunity from suit is immediately appealable prior to final judgment, Nixon v. Fitzgerald, 457 U. S. 731, 742-743 (1982), “for the essence of absolute immunity is its possessor’s entitlement not to have to answer for his conduct in a civil damages action,” Mitchell v. Forsyth, 472 U. S. 511, 525 (1985). And claims of qualified immunity may be pursued by immediate appeal, because qualified immunity too “is an immunity from suit.” Id., at 526 (emphasis in original).
  On the other hand, we have declined to hold the collateral order doctrine applicable where a district court has denied a claim, not that the defendant has a right not to be sued at all, but that the suit against the defendant is not properly before the particular court because it lacks jurisdiction. In Van Cauwenberghe v. Biard, 486 U. S. 517 (1988), a civil defendant moved for dismissal on the ground that he had been immune from service of process because his presence in the United States had been compelled by extradition to face criminal charges. We noted that, after Mitchell, “[t]he critical question ... is whether ‘the essence’ of the claimed right is a right not to stand trial,” 486 U. S., at 524, and held that the immunity from service of process defendant asserted did not amount to an immunity from suit — even though service was essential to the trial court’s jurisdiction over the defendant. See also Catlin v. United States, 324 U. S., at 236 (order denying motion to dismiss petition for condemnation of land not immediately appealable, “even when the motion is based upon jurisdictional grounds”).
  Lauro Lines argues here that its contractual forum-selection clause provided it with a right to trial before a tribunal in Italy, and with a concomitant right not to be sued anywhere else. This “right not to be haled for trial before tribunals outside the agreed forum,” petitioner claims, cannot effectively be vindicated by appeal after trial in an improper forum. Brief for Petitioner 38-39. There is no obviously correct way to characterize the right embodied in petitioner’s forum-selection provision: “all litigants who have a meritorious pretrial claim for dismissal can reasonably claim a right not to stand trial.” Van Cauwenberghe, supra, at 524. The right appears most like the right to be free from trial if it is characterized — as by petitioner — as a right not to be sued at all except in a Neapolitan forum. It appears less like a right not to be subjected to suit if characterized — as by the Court of Appeals — as “a right to have the binding adjudication of claims occur in a certain forum.” 844 F. 2d, at 55. Cf. Van Cauwenberghe, supra, at 526-527. Even assuming that the former characterization is proper, however, petitioner is obviously not entitled under the forum-selection clause of its contract to avoid suit altogether, and an entitlement to avoid suit is different in kind from an entitlement to be sued only in a particular forum. Petitioner’s claim that it may be sued only in Naples, while not perfectly secured by appeal after final judgment, is adequately vindicable at that stage — surely as effectively vindicable as a claim that the trial court lacked personal jurisdiction over the defendant — and hence does not fall within the third prong of the collateral order doctrine.
  Petitioner argues that there is a strong federal policy favoring the enforcement of foreign forum-selection clauses, citing The Bremen v. Zapata Off-Shore Co., 407 U. S. 1 (1972), and that “the essential concomitant of this strong federal policy ... is the right of immediate appellate review of district court orders denying their enforcement.” Brief for Petitioner 40-41. A policy favoring enforcement of forum-selection clauses, however, would go to the merits of petitioner’s claim that its ticket agreement requires that any suit be filed in Italy and that the agreement should be enforced by the federal courts. Immediate appealability of a prejudgment order denying enforcement, insofar as it depends upon satisfaction of the third prong of the collateral order test, turns on the precise contours of the right asserted, and not upon the likelihood of eventual success on the merits. The Court of Appeals properly dismissed petitioner’s appeal, and its judgment is
  Affirmed.
choices: comity: civil rights comity: criminal procedure comity: First Amendment comity: habeas corpus comity: military comity: obscenity comity: privacy comity: miscellaneous comity primarily removal cases, civil procedure (cf. comity, criminal and First Amendment); deference to foreign judicial tribunals assessment of costs or damages: as part of a court order Federal Rules of Civil Procedure including Supreme Court Rules, application of the Federal Rules of Evidence, Federal Rules of Appellate Procedure in civil litigation, Circuit Court Rules, and state rules and admiralty rules judicial review of administrative agency's or administrative official's actions and procedures mootness (cf. standing to sue: live dispute) venue no merits: writ improvidently granted no merits: dismissed or affirmed for want of a substantial or properly presented federal question, or a nonsuit no merits: dismissed or affirmed for want of jurisdiction (cf. judicial administration: Supreme Court jurisdiction or authority on appeal from federal district courts or courts of appeals) no merits: adequate non-federal grounds for decision no merits: remand to determine basis of state or federal court decision (cf. judicial administration: state law) no merits: miscellaneous standing to sue: adversary parties standing to sue: direct injury standing to sue: legal injury standing to sue: personal injury standing to sue: justiciable question standing to sue: live dispute standing to sue: parens patriae standing standing to sue: statutory standing standing to sue: private or implied cause of action standing to sue: taxpayer's suit standing to sue: miscellaneous judicial administration: jurisdiction or authority of federal district courts or territorial courts judicial administration: jurisdiction or authority of federal courts of appeals judicial administration: Supreme Court jurisdiction or authority on appeal or writ of error, from federal district courts or courts of appeals (cf. 753) judicial administration: Supreme Court jurisdiction or authority on appeal or writ of error, from highest state court judicial administration: jurisdiction or authority of the Court of Claims judicial administration: Supreme Court's original jurisdiction judicial administration: review of non-final order judicial administration: change in state law (cf. no merits: remand to determine basis of state court decision) judicial administration: federal question (cf. no merits: dismissed for want of a substantial or properly presented federal question) judicial administration: ancillary or pendent jurisdiction judicial administration: extraordinary relief (e.g., mandamus, injunction) judicial administration: certification (cf. objection to reason for denial of certiorari or appeal) judicial administration: resolution of circuit conflict, or conflict between or among other courts judicial administration: objection to reason for denial of certiorari or appeal judicial administration: collateral estoppel or res judicata judicial administration: interpleader judicial administration: untimely filing judicial administration: Act of State doctrine judicial administration: miscellaneous Supreme Court's certiorari, writ of error, or appeals jurisdiction miscellaneous judicial power, especially diversity jurisdiction